Young astrophysicist Zoe wishes to join Jamie and the Doctor on their travels. To give her fair warning of the dangers she may face, the Doctor uses a mind projector to share one of their most harrowing adventures... And so, Jamie is forced to relive his struggle against the evil Daleks at their most powerful and calculating. In a complex plot that drags him from modern-day London to Victorian times and finally to the Dalek world of Skaro, he endures ordeals that test his courage, strength - and his friendship with the Doctor - to the limit...