Trapdoor

Trapdoor is a challenge introduced in the first series of Fort Boyard UK.

Info
In the cell, the female contestant has to climb onto the male contestant's back and grab the baton which hangs from the ceiling. Then, using this tool, she must bang the white latches on the ceiling boxes to open them. There are various things in each box, such as flour and gunge, but from one box a key falls.