 With the clues they provide, Harry and Lucy realise the island is another portal, and persuade their friends to form a circle.This allows the pair to travel back in time to Falkirk on the day of the UFO meeting and manage to convince an initially skeptical group not to go to Australia by showing them the tapes they recorded throughout the show.At the end of series 3, CBBC viewers were asked to vote for a way to end the series.