Doomwatch

You Killed Toby Wren (2x1)

Air date: Dec 14, 1970

... Ninety seconds to go, says Quist from the end of the pier as Toby Wren on the other side is cutting wires leading inside a ticking nuclear bomb, wedged amongst the struts of the pier support. As two suited men arrive to take over, Toby, full of relief, thinks he has succeeded in disarming the explosive. But to his horror, he discovers one more wire, and he has dropped the clippers into the sea. As he tries to manually undo the wire from its terminal, the trip motor activates....