The Kidnappers - S1.E28

The guys' signal is intercepted and a silver-skinned alien shows up and kidnaps Anne. He leaves behind a data card which the rest of the Project staff use to send Tony and Doug to. The guys end up in a futuristic complex and meet a zombiefied ancients from different time periods and locales. A mysterious voice provides historical detail. According to the Project staff they're on a distant planet in the Canopis system in 8433 A.D. The guys meet the Curator then escape. They get hold of Ann before being captured and the Project staff try a recovery but grab a OTT (""Official Time Traveller) instead. He grabs the Time Tunnel's time/space converter and leaves. The guys and Ann stage an escape but mess that up as well. The Canopians go dormant during night, and the guys avoid being drugged to take advantage of the situation. They get nowhere for a while, and the OTT is not vulnerable to lack of sunlight. The three Earthlings manage to overcome it long enough to send Ann back with the convert