Coach has ordered yet another item from a con man. It's a weight telling fortune machine. Carla is spooked by the machine when everyone's fortune comes true. Diane doesn't believe in it, until she gets a fortune that relates to her and Sam.

The planet Frontios, in the distant future. Following Earth's destruction, a tiny colony struggles to eke out a life on this desolate world. But where do the bombardments that threaten them originate from? Little does the Doctor suspect that somewhere nearby lurks a power capable of ripping even the TARDIS apart...