welcome jerry lester, director of internal affairs for the tennessee department of corrections, jason woodall, special agent in charge, internal affairs for the tennessee department of corrections, sergeant valerie hampton, institutional investigator known for her ability to find drugs and other contraband. and john fisher, special agent internal affairs for the tennessee department of corrections. all four star in the new a & e documentary series "the squad: prison police." and when it comes to investigating crimes, police have it tough enough on the outside. on the inside, it's a whole other story. watch jason and john at work. this is a clip from "the squad." >> jason, he's my boss. he's hard on me. for the record, he's about six pounds more than i am. the relationship i have with john fisher is beyond just a professional one. we're also friends. we keep each other straight. i give him a hard time every chance i get. and if i've gone more than a day or two without giving him a hard time, i come up with a reason. >> john can work them out, too. >> yeah, this place -- very health conscience.