The Biggest Loser - Season 13 Episode 4
The teams compete for exclusive use of the gym during a battering-ram challenge. Bob and Dolvett, meanwhile, try to get through to contestants they feel aren't putting in enough effort to shed pounds.
First Air Date : 2004-10-19
Last Air date : 2020-03-31
Runtime : 57 minutes
Genre : Reality
Cast : Erica Lugo, Steve Cook, Bob Harper
Crew :
Quality : 
Subtitles :
- Season 13 : Episode 12012-01-03
- Season 13 : Episode 22012-01-10
- Season 13 : Episode 32012-01-17
- Season 13 : Episode 42012-01-24
- Season 13 : Episode 52012-01-31
- Season 13 : Episode 62012-02-07
- Season 13 : Episode 72012-02-14
- Season 13 : Episode 82012-02-21
- Season 13 : Episode 92012-02-28
- Season 13 : Episode 102012-03-06
- Season 13 : Episode 112012-03-13
- Season 13 : Episode 122012-03-20
- Season 13 : Episode 132012-03-27
- Season 13 : Episode 142012-04-03
- Season 13 : Episode 152012-04-10
- Season 13 : Episode 162012-04-17
- Season 13 : Episode 172012-04-24
- Season 13 : Episode 182012-05-01
