The Doctor and Izzy materialise on Icarus Falling, a small satellite orbiting Crivello's sun, and witnessed an attack on it by Daleks. While attempting to stop the Daleks' plans, it is revealed that another of the Doctor's deadliest enemies, the megacorp known as the Threshold, was hired to destroy the Daleks, and already had a plan in motion. However, as the Doctor and Izzy escape in the TARDIS, a Threshold agent appears to remind the Doctor of his hollow victory and their continuing machinations.