A Hepetologist is bitten by a rare spider in a dense rainforest, and a carrier drone containing anti-venom goes off course. Kayo, Scott and Virgil fly to the scene to find the drone before its too late.

Cast: Peter Davison, Rasmus Hardiker, David Menkin, Angel Coulby, Teresa Gallagher, Rosamund Pike, David Graham, Aimee-Ffion Edwards, Kayvan Novak, Chris Jarman