Stahlman's ambition versus safety and the Doctor's attempts to prevent disaster through parallel world interference.

In the Doctor’s workshop, Liz Shaw investigates the power outage and realizes Professor Stahlman deliberately cut the power to the Doctor’s experiment, trapping him in an unknown location. The Brigadier …

In the Drill Head control room, Williams delivers a critical safety warning to Stahlman 2, informing him that all safety factors have been exceeded. Stahlman 2, consumed by the urgency …