4x02 A Taste of Panama City

I’m completely puzzled and frustrated!! At end of season 3 episode 23 Casey was undercover to get info on girl trafficking, Dawson was looking at a pregnancy kit. Key In 4/01 and where the hell are we, no continuation, new characters on truck and ambulance with no lead up to how or why they got there?? 4/02 still all out of sync even the descriptions shown on screen don’t agree with what follows. However addictive so will perservire and comment again later, a huge thank you anyway guys. Ged

I don't think they would refer to it as "the crack house fire" on the official investigation record. Seems rather unprofessional.