Dan goofs up when he accidentally outs a witness in the Witness Protection Program. While a hitman from a dangerous crime family searches for the witness to keep the testimony buried, Jack and Dan team up with a U.S. Marshal to protect the innocent and stop the bad guys' nefarious plot.

While investigating a stolen painting at a doctor's house, Dan faints, and is restricted to desk duty until he recovers. Despite the handicap, Jack and Dan must find and capture the mysterious art thief, who may have left more at the crime scene than he intended.