The team are baffled when an archaeologist is poisoned during a dig but there is no evidence to prove how it was done. Meanwhile, Neville tests his skills in an island crab-cooking competition.
Quest roles:
Richard McCabe(Professor Roger Harkness), Bryony Hannah(Rebecca Morley), Luke Pasqualino(Ed Lancer), Golda Rosheuvel(Alice Joyce), Jim Caesar(Julius Joyce)