When Sita knocked out the First Doctor, Dako was assigned to guard him while Sita and Tor went elsewhere. While they were gone, the Doctor, who had been faking, turned the tables on Dako and tied him up, then left.
When the group later found Vicki, Dako was sent off to find Barbara. After he found her, the Moroks filled the room with gas. He collapsed from the gas, and Barbara helped him, only for them to be caught. They were soon rescued by Vicki and Sita but were again ambushed. Tor eventually rescued Dako and Sita, who had become separated from Barbara and Vicki. (TV: The Space Museum)