Moya gets infested with bugs who have come on board to breed. They turn up the temperature to speed up the process but this causes Aeryn to get heat delirium as she is cold blooded. The bugs seem to be able to replicate members of the crew. And as if that isn't enough, a peacekeeper ship shows up.

The crew come across a ship that is molecularly de-stabilizing. D'Argo makes everyone bring it aboard when he discovers that there are Ilanics on board. Crichton goes on to the escape pod he gets a shock and starts experiencing strange visions of the future, firstly of himself and Matala, then of Moya's destruction.

The crew visits a planet full of happy workers. Soon D'Argo and Zhaan start working and refuse to return to the ship. Meanwhile Rygel's body fluids become explosive and Aeryn and Pilot must learn why before Rygel dies.

Crichton is sucked down a wormhole and crash lands on a beach...on Earth, Australia. Although the home he has returned to isn't as real as it seems. Everything gets worse when the rest of Moya's crew shows up and are experimented on...killing Rygel.

A peacekeeper ship is approaching Moya, so Crichton and Aeryn pose as peacekeeper officers on a secret mission while everyone else gets locked into cells to make the deception seem realistic. The peacekeepers that come aboard have some secret cargo. But when their secret cargo escapes, no one on board is safe.

Crichton and Chiana try to infiltrate a peacekeeper base to get some vital medicine for Aeryn. Crichton gets caught by Scorpius and imprisoned. He is tortured using a device called the 'Aurora Chair' which is able to look inside his mind and where Scorpius learns that Crichton has the secret to creating wormholes.

Chiana leaves Moya and goes to 'grave planet' populated by reckless thrill seekers who play dangerous and life threatening games.

With Moya out of food, Chiana leads everyone to a dead boudong where she once worked.

The Scorpius clone puts John into a dream world to prevent the Scarrans from getting any wormhole knowledge.

A Nebari group come aboard Moya and attempt to mind cleanse everyone using a drug. Pilot and Rygel are the only two who can resist the effects. Crichton also remains unaffected due to Scorpius' neural clone.

The crew find a doctor that can heal Moya's burns and remove Crichton's neural chip. Things are complicated however when Crichton is informed he needs additional brain tissue from a donor in stasis who will die when the tissue is removed. Also Scorpius is beginning to take over Crichton's brain.

Aeryn goes to a planet in search of someone who can contact her father.

Crais gets Talyn to starburst inside the command carrier, causing it to collapse in on itself.

Elac arrives at the planet where D'Argo, Jool and Old Woman are investigating the ruins of an ancient civilization.

Crichton must find the third probe to end the magnetic summer, while avoiding Grayza and Oo-Nii.

A group of bounty hunters come aboard Moya and take everyone hostage. When Crichton arrives back with the Old Woman he destroys the bounty hunter's ship and goes aboard Moya to rescue everyone while the Old Woman puts herself into a coma where she can survive outside the ship.

After accidentally returning to Earth, Crichton discovers it he is in 1985 and he has altered the time line, causing his father to be scheduled to fly on the doomed shuttle 'Challenger'.

The women of Moya travel to a dead Leviathan to buy a sensor beacon for Moya which will allow her to appear to be a different ship. While there Aeryn and Sikozu spy on a secret meeting between the Peacekeepers and the Scarrans.

With the option to leave on the Peacekeeper Command Carrier no longer available and his nuclear bomb disarmed, Crichton must follow Scorpius' plan and destroy the Crystherium Utilia.