The trial of Gaius Baltar (James Callis) is underway. Unable to prove his role in the genocide of the Twelve Colonies, prosecutor Didi Cassidy (Chelah Horsdal) focuses on the charge of treasonous collaboration with the enemy on New Caprica that resulted in the loss of 2,600 human souls. With Lee Adama (Jamie Bamber) as his now-willing associate, Romo Lampkin (Mark Sheppard) opens the defense by arguing that the trial is motivated by mob bloodlust and Laura Roslin's (Mary McDonnell) need for vengeance. But with a succession of powerful witnesses lined up to testify against Baltar - including President Roslin and Colonel Tigh (Michael Hogan) - the defining issue becomes how far will Lee go to question the word of the fleet's leaders, while risking the increasing enmity of the chief judge: his own father, Admiral Adama (Edward James Olmos). And the Machiavellian Lampkin isn't shy about exploiting Lee's antagonistic relationship with the Admiral to gain an edge in the hostile courtroom. For his part, the Admiral must also deal with the possibility that the Cylons, conspicuous by their absence, have been secretly shadowing the fleet as it jumps from one sector of space to another, gradually closing in on the Ionian Nebula, the next stop on the route to Earth. Meanwhile, as each new jump brings the fleet closer to its destination, a series of strange hallucinations, visions and dreams begin bedeviling several members of the fleet, including President Roslin. By the time Roslin takes the witness stand, the stage is set for the trial against the most hated man in the universe to take a surprising turn.