Season 1, Episode 39 The time travelers materialize in 1978 in a small New England town taken over by aliens, who plan to drain all the oxygen out of Earth's atmosphere.
Season 1, Episode 38 Doug and Tony land in the desert during the historic 1883 battle of Khartoum just as a far greater battle against an alien race intent on destroying Earth begins.
Season 1, Episode 36 A metallic man of the future takes Ann to his planet for scientific study.
Season 1, Episode 35 Tony and Doug are frozen in time when a mysterious man in a cap appears in the Project base. This Merlin takes the guys out of time and sends them back to 544 A.D., Cornwall England.
You might be also interested in the following websites: