Sky S01E07 - Chariot of Fire

The juganet is revealed as Stonehenge, and Arbie and Jane take Sky there. He prepares to leave Earth but Arbie pleads to go with him. Sky will not allow it, but Arbie triggers the force of the juganet and finds himself propelled forward in time to a harsh world and threatening people. Arbie is likely to be lost forever but Sky intervenes and in thye most bizarre transport, gets him back to his own time - having learned a lesson about the forces of nature.