Bad Case of 'Roid Rage

This is the premiere episode of Survivor: Mauritius.

Challenges
Immunity Challenge: United We Stand Two members of each tribe will be on platforms, and the other eight members will have to alternatively place steps in the air to move them from one step to the next, which have to be untied first. When they reach the last platform, they will swim to the last short platform. Each of the ten members will have to be on or above the tallest step to win.