Flynn sniffs out trouble at the prison Mail Centre and MPI dog team Dee and Sam run checks on a cruise ship at Milford Sound.

Delta team Paul and Falon show how good they are at catching bad men, Corrections dogs Tiggy and Mac hunt behind the wire for contraband,

Dog Squad Delta team Aiden and Iko track a silly sinner who broke into a church and Corrections dog Jesse plays postmaster at Auckland Prison searching for illegal contraband.