Invisible Killer - S1.E513

The entire team of CID is on a vacation at a beautiful resort, taking a well desreved break from their daily grind. But crime does not leave them alone even now. For the first time, somebody is on CID's trail, instead of the other way around. There is danger to the life of one of the members of the CID team - the ACP, their chief. Will the CID team be able to save the ACP? Will they find out who the culprit is?