Death of a tango king

Yolanda's a convict, caught by the cops while her boyfriend was robbing a bank. Now all the Hell Sisters at Harrington Hills prison farm are in love with her. Their leader wants to "marry" her. Yolanda has to find a way out. She's been taking a philosophy course in jail from Melvin P. Sparks, a Cornell professor who talks to the female convicts once a week about ecology, in galoshes and a torn shirt. But it's only a disguise. He's actually a member of the Christian Commandos, a ragtag group of environmental rangers who aren't quite soldiers or spies. Yolanda happens to be the cousin of Ruben Falcone, king of the Medellin cartel. The rangers want to meet with Ruben, who's hiding in the jungles of Colombia, while a dozen agencies destroy the rain forest tracking him. Sparks helps Yolanda get out of jail, whisking her off to Medellin to find her long lost cousin.