The Reality Bomb cancels the electric field holding atoms together. Positioned to reach the time rift at the heart of the Medusa Cascade, its effect would spread into parallel universes and alternate dimensions while sparing the Daleks. The plan threatens life across time and space. It also helps create the DoctorDonna response and brings the Doctor, his clone, and others into the fight. The scale of the proposed destruction draws opposition from everyone it threatens.
Chapter · 1:51:25-1:54:44
The Reality Bomb threatens life beyond one universe
The Daleks' Reality Bomb would spread destruction through time and parallel universes.