Send in the Dogs

SINOPSIS

The Met's only father-and-son dog squad pairing are sent on a raid to a house suspected of being a cannabis factory. PCs John and Kevin Tozer both have German Shepherds and John's dog Charlie has reached the retirement age for police dogs. John is currently looking for a replacement for Charlie, but the old dog shows he still has plenty of life left in him when he sniffs out a man hiding following an attempted robbery.