After the Movellan attack, the Counter-Measures team discover that key scientists who helped the Movellans are being murdered. Rachel Jensen realises that the Daleks are behind it.

Soon the team finds itself in the middle of a desperate war between Daleks and Movellans. As casualties mount, the Daleks plan to explode a bomb to wipe out the Movellans. Unfortunately, it will also destroy all life on Earth.

Rachel finds herself struggling to diffuse the bomb as the clock ticks down. The stakes are high and this time not everyone will make it out alive...