The Professionals S03 E02 Backtrack

"ANARCHY, ACTS OF TERROR, CRIMES AGAINST THE PUBLIC. TO COMBAT IT WE'VE GOT SPECIAL MEN..."

It's just another routine house break-in for a cat burglar, until he accidentally uncovers a complex drugs smuggling operation. When CI5 step in, they realise it's not just the burglar's life that is now in danger.