Season 4
Episodes
1 Alligator Alley Apr 19, 2015 
2 Rumble in the Jungle Apr 26, 2015 3 Mayan Sacrifice May 3, 2015 4 Edge of Madness May 10, 2015 
5 Fire on the Mountain May 17, 2015 
6 Lord of the Rats May 24, 2015 
7 Colombian Conflict May 31, 2015 
8 Garden of Evil Jun 7, 2015 
9 Redemption Road Jun 14, 2015 10 Surthrive Jun 28, 2015 
11 Easier Said Than Done Jul 19, 2015
2 Rumble in the Jungle Apr 26, 2015 3 Mayan Sacrifice May 3, 2015 4 Edge of Madness May 10, 2015 5 Fire on the Mountain May 17, 2015 6 Lord of the Rats May 24, 2015 7 Colombian Conflict May 31, 2015 8 Garden of Evil Jun 7, 2015 9 Redemption Road Jun 14, 2015 10 Surthrive Jun 28, 2015 11 Easier Said Than Done Jul 19, 2015