A spate of burglaries at Christmas leads to a PCSO and his colleague being attacked as they track down and try to arrest the thief. A West Midlands police officer returns to work after an assault, only to be attacked again just weeks later, and a Yorkshire police officer starts his retirement needing physiotherapy after an attack.

A Critical Incident special looking at knife crime in the UK. In Essex, a police task force is on a mission to stamp out knife crime. In London, a Metropolitan Police officer is the victim of a vicious knife attack, and a groundbreaking scheme led by West Midlands Police aims to educate young people on the consequences of knife crime.