Crossword puzzle clue "means of escaping prison maybe"

Means of escaping prison, maybe

Crack commando unit sent to prison by a military court for a crime they didn't commit, before escaping to the Los Angeles underground where today, still wanted by the government, they survive as soldi

Disguise of Toad when escaping prison

Means of prison communication?

Sewer pipe that prevents gas from escaping

Escaping à la James Bond, perhaps