Survivor S04E06 - The Underdogs

The tribes try to win a picnic in the "Jungle Relay" reward challenge, in which teams use a canoe to retrieve a flag in the water after racing through the jungle to find two hidden paddles. For immunity, each tribe forms a human chain to collect numbered ladder rungs inside a maze. The first team to find all of their rungs and use them to climb a tower wins. The losing tribe votes out the game's sixth player.