Survivor season 19

The twenty contestants were already assigned tribes at the start of the game, but, based only on appearances, the tribes were told to vote one of their own as a "leader", who, for the first half of the game, would make critical decisions at certain challenges, in particular, selecting one member of their tribe to spend the day after reward challenges with the other tribe through which they would receive a clue to the hidden immunity idol. 

Episode:

1
http://adf.ly/1TSS5
http://adf.ly/1TSS6
2
http://adf.ly/1TSS7
http://adf.ly/1TSS8
3
http://adf.ly/1TSS9
http://adf.ly/1TSSA
4
http://adf.ly/1TSSB
http://adf.ly/1TSSC
5
http://adf.ly/1TSSD
http://adf.ly/1TSSE
6
http://adf.ly/1TSSF
http://adf.ly/1TSSG
7
http://adf.ly/1TSSH
http://adf.ly/1TSTR
8
http://adf.ly/1TSTS
http://adf.ly/1TSTT
9
http://adf.ly/1TSTU
http://adf.ly/1TSTV
10
http://adf.ly/1TSTW
http://adf.ly/1TSTX
11
http://adf.ly/1TSTY
http://adf.ly/1TSTZ
12
http://adf.ly/1TSTa
http://adf.ly/1TSTb
13
http://adf.ly/1TSTc
http://adf.ly/1TSTd