Colin plans to board a ship and sneak out of the country. He convinces Claudia, his former art dealer, to wire him the $10,000 passage fee. Valerie seeks Jonesy's help to track down Colin, and he sends her a handsome FBI agent. Carl throws Steve a huge 21st birthday bash aboard the Queen Mary and invites all his friends. Andrea surprises Steve by flying in for the party. David and Donna put together a video birthday greeting from friends and relatives who couldn't make the party. They send an inquiry to Brenda's address (she is actually on tour in Scotland), but receive a reply from Dylan. David helps Donna fight off the advances of their lecherous boss. She cools him off by revealing that she is a virgin, and he decides to hit on Kelly instead. Susan receives a chance to work on the presidential campaign. Brandon does not want her to go, and reminds her that he turned down his newspaper job in favor of their summer trip. Joan feels under the weather as she and Nat attend Steve's party. Carl tells Steve that he is in love with Clare; he asks him to give Clare the chance to choose between them. Music: 'Jim Dandy' by LaVern Baker, 'Feels So Good' by Lina Santiago.

Carl professes his love for Clare, who is furious that Steve seems willing to let her go. He tries to prove himself by punching Carl, but only angers her further. Susan takes the job in Washington, effectively ending her relationship with Brandon. Brandon and Steve decide to leave the ship and get drunk. Steve argues with a weirdo at the bar, touching off a brawl. During the fracas, Brandon and Steve see Colin running out of the bar. Steve and Brandon are arrested, but the bar owner does not press charges. Colin panics after being recognized and fails to board the freighter. Brandon, Steve, Valerie and Kelly see Colin on the street; the guys chase him and hold him at bay until the cops arrive. Valerie gets a date with the FBI agent, who considers a transfer to Los Angeles. Clare rejects Carl's overtures because she is in love with Steve. Joan and Nat are shocked to learn that she is pregnant. When they try to share the news with Brandon, Nat instead announces their engagement. David and Donna get carried away while drinking on the ship, as she proves that she still cannot handle her champagne. They later decide to give their relationship another try. Inspired by the news that Brenda and Dylan are living together, Kelly asks Brandon for another chance. He suggests that they wait awhile to ensure that they are not on the rebound. Music: 'Long Way Down' / 'Naked' / 'Name' performed by Goo Goo Dolls.

Cmdr. Rabb and Lt. Austin travel to Okinawa to investigate the murder of a Navy sailor. After finding nothing to go on, the two join the sailor's ship, which is about to test an experimental ship and weapons control software system. However, during the test things go horribly wrong and it becomes clear the software has been sabotaged, leaving the ship adrift and vulnerable to the impending arrival of several North Korean naval vessels. To make matters worse, the ship's weapons are now set to track and fire on any U.S. rescue response.

After Briscoe, Curtis, McCoy, and Kincaid witness the execution of a criminal they brought to justice, their unique reactions to the event culminate in personal tragedies for each of them.

While Sheridan is unstuck in time, seeing a glimpse of a future Centauri Prime in ruins, the others continue with their plan to take Babylon 4 back in time.