The Krarg absorbs energy from K9's blaster, forcing the Doctor and Chris to flee the exploding Think Tank with K9 and the Ship. Regretting the loss of the scientists' minds, the Doctor directs the Ship to Skagra's carrier, convincing it to follow his orders. Meanwhile, Chronotis struggles to repair his old TARDIS with Clare's help by enhancing her knowledge temporarily. Skagra prepares to merge the universe's minds using the sphere and Salyavin's powers. The Doctor, Chris, and K9 escape from Krarg guards and reunite with Chronotis in his study, realizing they must stop Skagra. On Shada, Skagra discovers Chronotis is Salyavin and captures his mind with the sphere, aiming to create a universal mind with his Krarg army.