Toby tries to arrange a proper funeral for a homeless veteran. Josh and Sam try to set up a preemptive strike against Lillienfield, who is attacking Leo because of his prior drug and alcohol problem. CJ tries to get the staff to revisit the hate crimes issue. Bartlet sneaks out to do some last minute shopping.

While Josh recovers from bullet wounds there's a noticeable tension among some of the White House Staff. Toby is gung-ho to go after extremist groups in light of the attack. Charlie withdraws from the first family after learning more about the shooting. Bartlet's mind is preoccupied with a small time school election because of an old rivalry. CJ mangles physicist by referring to them as psychics as Josh listens from his sick bed. A subplot involves a reception for radio talk show hosts. Dr. Jenna Jacobs, whose doctorate is in English Lit., is one of those attending. Sam encourages a friend to run for office, unfortunately it doesn't go as he intended.

On the eve of Jed's participation in a national television conference with thousands of school children as the Galileo probe arrives at Mars, NASA loses the communication link; Leo contends with a Russian ambassador who denies that a fire has broken out in a nuclear missile silo; C.J. and Sam accompany Jed to a concert where they're each faced with people they'd rather not see; Josh and Donna work on the nomination for the next person to appear on a postage stamp; C.J. wrangles a minor controversy ignited by a leak that Jed doesn't like green beans.

Toby, suspicious that there's something going on with the President, finds out about Bartlet's MS and informs Leo of the legal ramifications; Josh and Donna disagree about the date of their "anniversary"; Sam and Ainsley argue about the necessity of the ERA; staffers struggle to punch-up the speech the President will give at the White House Correspondents Dinner.

The Special Prosecutor sets his probe in motion; Sam and Bruno are concerned about the loyalty of a powerful labor leader; Toby and Josh are preoccupied with a congressional battle over the estate tax; Ainsley fixes up Donna with a Republican.

The President has a showdown; Donna lies when she appears before the Congressional committee investigating the President; Leo debates with an old friend about the US future stance regarding the war crimes tribunal; Sam tries to find the logic in a Congressman's proposed legislation to eliminate the penny.

At Abbey's urging, Josh meets with a powerful women's caucus over the proposed language of a United Nations treaty banning prostitution.

On the day of the Democratic Caucus, Bartlet, Toby and C.J. go to Iowa to kick off the presidential race, and disagree over Bartlet's making a statement about affirmative action. Back in Washington, Leo forces Josh to intercede with an old friend leading a protest against Navy arms testing at Vieques, Puerto Rico. Sam meets with Bob Engler again, who is now acting on behalf of two congressmen who want an inventory of Fort Knox because they believe that most of the gold bullion has been replaced with alien bodies recovered from Area 51 in Roswell, New Mexico. After Josh rebuffs her request, Donna seeks Sam's help in getting out of jury duty. Josh brings a little bit of Tahiti to his relationship with Amy Gardner.

Concern arises over the medical board's decision on Abbey's actions in treating Jed's M.S.; Sam tries to get a Senator he doesn't like to pass a bill for a super-conducter that he doesn't even understand; Amy tries to influence Josh; Lord Marbury explains to Toby why a member of the IRA cannot be invited to the White House; Donna receives shocking news when the Secret Service won't give her clearance to attend Abbey's birthday party.

The revelation that a Russian company may be building a heavy water reactor in Iran puts Jed in a difficult position as he prepares to meet with the new Russian president; Jed orders the Secret Service to protect C.J. when she receives death threats after making a comment at a press conference about the deaths of Saudi girls; Leo wants to find a way to help a major campaign contributor whose company is faced with a massive product recall; Charlie ponders the mystery of a strangely out of context letter written to the President.

Bartlet continues to struggle over the wisdom of assassinating the terrorist Qumari defense minister; after Ritchie declines to meet Bartlet, Sam and Toby play a dirty trick; as the search for Mrs. Landingham's replacement continues, Charlie finds the perfect candidate, who makes less than a stellar first impression on Bartlet; Josh's determination to pass a welfare bill costs Amy; as C.J.'s stalker is finally captured, the night ends in tragedy.

Bartlet decides he needs a lawyer when Qumar goes after Israel; Josh is disturbed to learn that Stackhouse might not endorse Bartlet; a comment Deborah made years ago comes back to haunt her during a security check.

Bartlet, Leo, Josh, Sam and C.J. pull a practical joke on Toby; Sam's mission to end the Wilde campaign leads him to make a career-altering decision; Jordan backs up Leo as he deals with the Qumari; Toby continues to press his case with a resistant Andrea; and Bartlet cleans Ritchie's clock in their debate.

While Toby unsuccessfully attempts to fill her shoes in the briefing room, C.J. returns to Dayton, where she gives a speech at her high school reunion, reconnects with an old friend, and struggles with her father's worsening Alzheimer's.

While Toby and C.J. are in California working on Sam's campaign, Josh drops Abbey's agenda in favor of his own, Jed deals with a military hostage situation, and Will runs his intern writing staff ragged.

Toby's old friend approaches him ready to blow the whistle on his employer's violations of environmental laws; staff pranks abound on Amy's first day at the office; Abbey charges Amy with the task of convincing the President to threaten a veto on a foreign aid bill containing an abortion gag rule provision; claiming that Abbey's ancestor was a pirate rather than a privateer, a prominent member threatens to mount a boycott of the D.A.R. dinner at which Zoey will be inducted until Will, C.J. and Amy devise a plan to defuse the situation; at the behest of Jean Paul, Zoey sends Charlie a "Dear John" email, but Charlie refuses to accept the brushoff and declares his love for Zoey; Donna is less than thrilled when Josh assigns her the job of shadowing a possible security risk at Zoey's D.A.R. induction; Will takes one for the team in putting an environmental and political face on the destruction and deaths which resulted from the melting of an Alaskan glacier.

Bartlet finally tells the staff the truth about the death of Shareef; Danny agrees to hold off on the story after five alleged terrorists go missing; Andy goes into labor after once again refusing Toby's marriage proposal; Zoey is kidnapped from a nightclub on the night of her college graduation.

As the search for Zoey continues, Walken takes a hard line against the kidnappers that could contribute to her death; Danny releases the Shareef story, and the revelation creates a rift that separates Jed from Abbey and Liz; tensions arise between Walken's staff and Bartlet's staff; the Democratic leadership in Congress assails Leo for allowing Jed to step aside; in retaliation for Shareef's death, a movie theater in Turkey is bombed, and eighty people, including American soldiers, are killed.

When he realizes that his first choice for Vice President faces an uphill fight for nomination, Jed nominates a congressman that none of the staff can get excited about; Josh is less than thrilled with his new intern.

As Chief Justice Ashland's health problems continue to mount, Joe Quincy, Ashland's former clerk, is pressed into service to persuade him to retire; as C.J. prepares Zoey for a sit-down interview about her kidnapping, Abbey reveals that her relationship with her husband is still strained; Jed refuses to be held hostage by the Republican in the budget negotiations.

President Bartlet attends the funeral of a former president with other former presidents Glenallen Walken and D. Wire Newman, while monitoring a possible situation in Saudi Arabia. Josh Lyman mediates an argument between a representative from Connecticut and one from North Carolina who wants her state's copy of the Bill of Rights returned. CJ is concerned about a scientist's invention which could interfere with privacy.

When five navy E-2C Hawkeye crew members are stranded in North Korea, Bartlet orders a risky Navy Seal rescue attempt. C.J. agrees to one on one with a motormouth conservative talk show host

A documentary camera crew follows C.J. around for a not-so-typical day in the White House.

As they remain at Donna's bedside while she recuperates from surgery to remove a pulmonary embolism, Colin questions Josh about his personal relationship with Donna. When Bartlet and Leo clash over the appropriate response to the Gaza attack, Kate makes the case for a summit meeting, and provides Bartlet with the hook he needs to get the Israelis and Palestinians to sit down together at Camp David.

Bartlet orders a strike on the terrorist training camp as he and his staff broker a peace settlement between the Israelis and the Palestinians, but Bartlet and Leo realize that their differences over the peace settlement are irreconcilable, warranting a change in Leo's responsibilities. Having returned from Germany, Josh expresses concern about Leo's well-being, and his observations turn out to be well founded.

Margaret and Charlie prove to be invaluable allies as C.J. has a rough first day in her new position, made even more difficult by a Russian bearing radioactive gifts and a Defense Secretary's attempts to undermine her; Toby's less than stellar performance in the briefing room makes the search for a new press secretary a top priority, and Josh volunteers Donna to assist him in interviewing potential candidates; faced with a number of vulnerable seats in the upcoming election, Josh attempts to dissuade Matthew Santos from dropping out of another race for the House.

Penn and Teller roll a lesson about the First Amendment into their entertainment at Zoey's White House birthday party, setting off a media frenzy and public relations nightmare; Baker drops out of the race, leaving the field free for Russell, who asks Josh to run his campaign; Jed takes a hard line on making significant gains on substantive issues in his last China summit; Vinick turns down Jed's offer of the U.N. ambassadorship to run for president; a fully ambulatory Donna has difficulty scheduling a meeting with Josh; Jed has an MS relapse which leaves him partially paralyzed and in a wheelchair.

The presidential candidates journey to Iowa, where democrats Russell and Santos, and republican Vinick, are all told by their handlers that when they appear before before the corn growers association they must support subsidies for the use of corn-derived ethanol as fuel, regardless of their true feelings.

A new candidate for president, Senator Rafferty, has garnered much media attention with a ground-breaking speech about health care. But her words contain interesting echoes of President Bartlet's original health plan, which is known only to White House insiders, and reporter Greg Brock suspects that Rafferty is being secretly supported by the incumbent. Meanwhile, Toby is more than usually morose after the death of his brother. A bill to combat drought conditions in the western U.S. gives C.J. problems, particularly in dealing with lobbyist Clifford Calley. And Charlie tells Kate Harper that a man from his gym asked if she was dating anyone.

At the Democratic National Convention, Russell, Santos and Baker jockey for the 2162 votes that will give one of them the nomination for President, and the opportunity to lose to the apparently unstoppable Vinick in November. Meanwhile, the President must make a decision before it's too late on whether to deploy a secret rescue mission to the space station, and the FBI is asked to determine who leaked the existence of the military shuttle to the press.

Santos and Vinick have to deal with press fallout when it looks like the Bartlet White House is not going to continue the investigation into the press leaks.

The White House is trying to cope with the revelation of the identity of the leaker and Babish's questioning of Toby convinces him that he must get his lawyer. Lou persuades Josh to get Santos to clean house with his campaign staff. Kate finally reaches Charles Frost and confronts him about what he told to C.J. and a few other things about his personality in general. The Bartlets hear Ellie's heapful of "good" and "bad" news.

Santos and Vinick battle it out in primetime live. Forrest Saywer the moderator poses questions and attempts to ensure that the candidates remain within bounds. Ellen DeGeneres guest hosts the show on behalf of American Express and their new credit card.

After the near-nuclear disaster at the power plant the polls show surprising, or maybe not so surprising, results for both candidates. The Vinick camp gears up for backlash while the Santos camp hopes for cause to celebrate. Meanwhile Bartlet is still trying to keep the situation in Central Asia under control. Relationships in the Santos campaign, the Vinick campaign, and the West Wing all undergo changes and Vinick and Bartlet attempt to deal with different versions of the cold.