Richard Hammond's Miracles of Nature (2012)

S3E20 Pinch Hitters

Gary rushes to avert a crisis surrounding a rare monkey, but during the chaos, he is bitten and must go into quarantine while they check for a rare disease. Meanwhile, Gary seeks Marissa's assistance to keep an elderly man safe from a series of perilous situations. With the support of her new boyfriend, Emmet, Marissa takes on the challenge of protecting the man from potential harm.