Jay and Angie go undercover to infiltrate a gang of British robbers posing as chimney sweeps. However, when the gang gets hold of a flash drive with valuable information, the detectives have to continue their undercover work and pretend to be prisoners to recover the drive.

When someone blackmails LA's mayor, the police send in lone-wolf detective Angie Tribeca. However, they also give Angie her 237th partner despite her bad luck with the last 236.