Detective Scotty Valens from Philadelphia's Cold Case unit comes to NY to investigate a murder that connects to Stella's past. Also Mac's recent solo bust is scrutinized because a handcuffed criminal fell off a rooftop.
A man dressed like an angel dies while trying to make a daring jump. But it seems one of his equipment was tampered with. Philadelphia homicide detective Scotty Valens arrives and claims that Stella's DNA was identified as being linked to a ten year old murder in Philadelphia. But Stella claims she wasn't even there when it happened so they try to find out what's going on. And Mac learns from the Chief that he will be investigated for Clay Dobson's questionable death despite Mac's claims that he didn't do anything.—rcs0411@yahoo.com