What happens next?

A large waterfall is shown outside near a rocky trail of water. all

Choices: (i). of a sudden, a person on a long raft comes paddling down the water and goes over the fall with ease.; (ii). of a sudden, a person appears pulling a ladder up out of a hole and she slides down a waterfall and into the water.; (iii). three men walk across the rapids and fall from their thick ropes into the upper end.; (iv). of a sudden, the boy walks out of his house and has his clothes taken off.;
(i).