getting to space and alerting the invasion fleet, which he agrees to. The Doctor, Tyler, and Anji break into Dudoin's launch pad with ease as Fitz and Sa'Motta are being chased by guards elsewhere in the complex. After rescuing Christine, the Doctor links his mind to Dudoin's ship to shut it down, but he passes out in the process. However, he first raises the oxygen level which causes the Kulan led by Fray'kon to faint, but Fray'kon escapes. Tyler then uses the DVD with the Kulan virus to destroy the systems, and the cabin sets alight, killing the Kulan aboard and Dudoin himself. Returning to Britain, the Doctor helps Tyler complete his rocket so he can return Sa'Motta to the invasion fleet to order the abortion of the invasion. Dave is recovering, but Christine discovers a small amount of Kulan DNA in Dave which was there before his infection, indicating that humans and Kulan may be genetically related, giving solid evidence against the invasion. However Fray'kon enters, having followed them. Control's squad enters, to stop Tyler's ship taking Sa'Motta to the fleet, but Tyler attempts to launch anyway. Fray'kon steals the Doctor's spacesuit and forces Dave to drive to the launch platform, whilst holding Anji hostage. After reaching the rocket, he murders Dave and boards the rocket. The CIA withdraw from the complex, but the Doctor can't warn Tyler about Fray'kon being on board the rocket. Fray'kon overpowers the crew and drives the rocket towards the fleet, where he informs the fleet commander that the humans are savages, and should be killed. The Doctor and Anji go back to St Louis' pub, where the TARDIS has finally regenerated itself. The Doctor pilots the TARDIS onto the Kulan command ship. The Doctor tells Anji to stay in the TARDIS, but she follows him and watches him be captured and put in a holding cell. The Kulan destroy Tyler's ship and put him on trial in front of their war council. Anji releases Fitz and they go to the weapons room. Trying to scare the Kulan by firing an energy beam, she instead fires a barrage of missiles which destroy half the fleet, who turn on each other. The Doctor and Tyler fight Fray'kon, but when Fray'kon gets stunned, Tyler offers to stay and hold off Fray'kon whilst the others escape. Tyler tricks Fray'kon into falling to an airlock and Tyler ejects