在这部神秘博士：罗网星球科幻片中,On the planet Vortis, the Doctor, Ian, Barbara and Vicki are swept up in the struggles of the butterfly-like Menoptera, the original denizens of Vortis who were forced to flee the planet for the moon Pictos to escape the encroaching web of the Animus and its mind-controlled minions, the ant-like Zarbi and their living weapons, the larvae guns.
The TARDIS is drawn by a mysterious force and lands on the alien planet Vortis. There the Doctor, Ian, Barbara and Vicki find themselves caught up in a war between an evil force known as "The Animus", its ant-like Zarbi allies, and the butterfly-like Menoptra race and their allies the subterranean Optera.
