Doghouse tunnel

The doghouse tunnel is placed under one of the doghouses inside the dog compound for the camp's guard dogs. The tunnel, which is activated by lifting up the doghouse, is mainly used by the prisoners whenever they plan to either smuggle into or smuggle out of camp people via Oscar Schnitzer's truck. Because of this, the heroes have made an arrangement with dog handler Schnitzer, who is actually a member of the underground, to train the dogs so that they won't set off an alarm, via their barking, whenever they or someone whom the dogs are not familiar with enters the compound to use the tunnel or when one of the prisoners goes through the lifted doghouse to conduct a mission.

The doghouse tunnel would be featured in several episodes of the series, as well as in LeBeau's opening scene clip.