The New Avengers: Trap (1977)

Synopsis
Teaming up with CIA agent Marty Brine (Stuart Damon), the New Avengers foil a huge drug deal engineered by Mandarin crime boss Soo Choy (Terry Wood). In retaliation, Soo Choy lures Steed (Patrick Macnee), Gambit (Gareth Hunt) and Purdey (Joanna Lumley) into his lair, then hunts them down like animals. Just in case anyone has missed this episode's resemblance to Richard Connell's classic short story "The Most Dangerous Game", let it be noted that the villain intends to claim our heroes' heads for his trophy room--and he already has three personalized chopping blocks at the ready. ~ Hal Erickson, All Movie Guide