Blake tries to rescue the remaining prisoners from the prison planet Cygnus Alpha only to find they have a disease that can be cured by the power mad high priest Vargas.

The crew steals a Federation deciphering unit and accidently leave Cally behind. Travis finds her and decides to used her in a hostage trap for Blake.

Gan's limiter malfunctions, and the crew go to space station XK-72 to have it repaired, at the risk of being discovered. The neurosurgeon notifies the Federation and delays surgery long enough for Federation forces to arrive.

The Liberator crew fly to Aristo to deliver the supplies to Ensor, in exchange for radiation drugs and the computer Orac, which Ensor gives to Blake before he dies. Orac predicts the destruction of the Liberator.

The crew encounter the System, builders and original owners of the Liberator (known to them as Deep Space Vehicle-2). They disable its defense systems in an attempt to try to get their craft back. A sister ship (DSV-1), in pursuit, is destroyed by Orac.

The Liberator crew journey to a planet where a friend of Avon's works, in order to get TP crystals. The derelict spaceship K-47 is retrieved, and an on-board virus spreads throughout the complex.

The Liberator is ambushed by several Federation ships. Travis captures Blake's cousin. He claims to want to join Blake's crew.

The crew travels to the planet Albian in search of information on the location of the Federation computer system Star One. Avon defuses a bomb with the help of Del Grant, who had thought Avon deserted his sister.

Severely damaged by combat in the Galactic War, the Liberator disperses its crew while it repairs itself. Avon lands on a planet and is rescued by the daughter of a former revolutionary. Priceless scenes between Avon and Servalan.

The crew strike a deal for crystals needed for Liberator's weapon systems. In exchange, Vila must help in obtaining a treasure on the planet Keezarn but in doing so he finds a gateway to another world.

The crew go to the planet Ultraworld, only to discover it is a mental reprocessing plant. Vila saves the crew by telling riddles to Orac.

Tarrant is teleported into a spaceship bound for the invisible planet Sardos, which the crew of Liberator discover after nearly crashing into it. Servalan is interested in the matter replication technology developed by the inhabitants of the planet.