Slow Bomb - S4.E5

When a routine security check on a nuclear power plant goes disastrously wrong, Red Troop find themselves hunting the mercenaries responsible for stealing a can of glow in the dark Cobalt 90. As London is shut down, Red Troop race to stop the detonation of a dirty bomb and the certain devastation of the capital. The Troop then had to spend a large amount of time on the run