Blake's 7 - Season 2 (1979)

The Liberator arrives at the planet Horizon when the Liberator follows a Federation freighter. Blake and Jenna teleport to the surface, only to be taken captive by Federation guards. Shortly after Cally, Gan and Vila are also taken captive and forced to work in the mines. Avon decides to leave the crew on Horizon and take control of the Liberator, but instead, teleports to the surface to rescue them.

The Liberator returns to Earth where Blake plans to attack the Federation Central Control computer complex. But Blake's contact, Kasabi and her daughter Veron have been taken prisoner by Servalan and Travis. Blake and Gan teleport to the surface to find Veron while trying to outrun the security devices on the outer perimeter of the Central Control computer complex.

Blake holds himself responsible for Gan's death at the Central Control computer complex and decides to desert the crew. He teleports to the surface of a volcanic planet, where he finds he is not alone. Meanwhile Travis is standing trial at Federation HQ for the massacre of innocent people.

Avon and Vila teleport to a Federation installation on the planet Fosforon to meet an old friend of Avon's in hopes of stealing a key component of the Federation's cipher coding system. Meanwhile, Blake becomes involved with the base's investigation into the appearance of a spacecraft listed as missing 700 years ago that has suddenly appeared near Fosforon.

The Liberator crew learns Travis is on the planet Exbar where he has taken Blake's cousin Inga hostage, demanding Blake comes to meet with him. Now he is a Federation outlaw he wants to join the Liberator crew. Things heat up when Servalan also arrives on Exbar.

The Liberator heads to the Federation controlled planet Albian, where the crew search for Federation officer Space Major Provine whom they believe can lead them to the location of Central Control. They learn the Federation has buried a radioactive bomb on Albian which can wipe out all life on the planet. Avon meets up with enemy Del Grant, brother of Avon's former lover Anna, and tries to disarm the bomb, having to put aside his differences with Grant.

As the Liberator heads to Del-10 Blake receives a subliminal signal to reroute to an asteroid where he finds Shivan, a resistance leader and Governor Le Grand who need the Liberator to transport them to Atlay where they are to hold a summit to denounce the Federation. But is all what it seems?

The Liberator travels to the gambling paradise of Freedom City, where Blake is in search of a cybernetics surgeon known as Docholli who knows the location of Star One, the Federation power base. However, Servalan has implanted a bomb in Travis' robotic arm, which will kill both Blake and Travis, and Travis requires Docholli's help to remove the bomb.

The Liberator sets a course for the planet Goth, where Blake, Jenna and Vila go in search of a amulet that belongs to the royal family, containing the location of Star One. But Travis too has arrived on Goth and is also after the amulet. To secure the amulet Blake agrees to rescue Rod, brother of the planet's ruler Gola.

Blake leads the apprehensive crew of the Liberator out into intergalactic space to find and destroy Star One and cripple the Federation. What none of them realize is that Star One is already showing signs of sabotage. But since nobody but Blake's crew know the location of Star One, who could be causing it, and why?