Invasion
S2, E20: Returning to the Carsenome with the Menoptra's isop-tope device, the Doctor and Vicki are herded into a chamber where they are enveloped in a web-like substance. What next for the Doctor?

S2, E20: Returning to the Carsenome with the Menoptra's isop-tope device, the Doctor and Vicki are herded into a chamber where they are enveloped in a web-like substance. What next for the Doctor?