TEXT: The TARDIS materialises in Cardiff in front of the water tower in Roald Dahl Plass. The Doctor is at the console, Martha watching. DOCTOR: Cardiff. MARTHA: Cardiff? DOCTOR: Ah, but the thing about Cardiff is that it's built on a rift in time and space-just like California and the San Andreas Fault. The rift bleeds energy. Every now and then I need to open up the engines, soak up the energy and use it as fuel. MARTHA: So it's a pit stop. DOCTOR: Exactly. We see someone running through the Plass. MARTHA: Wait a minute. They had an earthquake in Cardiff a couple years ago. Was that you? DOCTOR: Bit of trouble with the Slitheen. The runner is revealed to be Captain Jack Harkness. [Spin-off Torchwood]. DOCTOR: Long time ago. Lifetimes. I was a different man back then. JACK (drawn out): Doctor! Nears the TARDIS. DOCTOR: Finito. All powered up. Jack appears on the TARDIS monitor. The Doctor sees him and a look of panic appears on his face. He starts the TARDIS. Jack leaps. Inside the TARDIS the console sparks and the Doctor and Martha are thrown to the floor. MARTHA (clings to console): What's that? DOCTOR: We're accelerating into the future. The year one billion. Five billion. Five trillion. 50 trillion. What? The year 100 trillion. That's impossible! MARTHA: Why? What happens then? DOCTOR: We're going to the end of the universe. Jack is clinging to the TARDIS as it travels through the vortex. JACK (drawn-out yelling): Doctor! A man with facial tattoos, piercings, ritual scarring and pointed teeth raises his head. Fires are burning behind him. He is the Chieftan of the Futurekind. CHIEFTAN: Hu-mans. Others with wild hair, pointed teeth and some tattooing look at him. CHIEFTAN: Humans
SUMMARY:
The TARDIS parks in Cardiff to refuel itself with energy from a time rift. The Doctor's former companion Captain Jack Harkness jumps onto the outside of the TARDIS, making it travel to the planet Malcassairo at the end of the universe, 100 trillion years in the future. Surrounded by a group called the Futurekind, the Doctor, Martha and Jack escape for the safety of Silo 16, where the last of humanity are waiting to board a rocket to "Utopia". The Doctor powers up the engines, and Jack fixes the rocket's couplings, making it viable for launch. Martha notices that Professor Yana, the rocket's designer, has a fob watch exactly like the one which turned the Doctor into a human. Yana notices the watch and opens it, changing his biology back into his true identity: a Time Lord called the Master . The Master and Yana's assistant Chantho mortally wound each other, and the Master regenerates. As the rocket takes off, the Master steals the Doctor's TARDIS, stranding the Doctor, Martha and Jack in the silo with the Futurekind.