'Come on in guys!'
Lochy says it sucks to wins reward, but to use immunity!
Mark W then says he doesn't care about reward, but cares about winning immunity
The challenge is: Spilit into 2 groups: Builders and runners. Builders will build an obstacle course for the runners. The runners will then carry sandbags, to knock the target off. First tribe to do so, wins immunity.
Kent will sit out