The First Doctor visited Aridius, but was tracked by the Daleks, who pursued him in a time machine. The Daleks tried to force the Aridians to hand the Doctor and his companions over, but they escaped in time from the Aridians. One of the Daleks was guarding the TARDIS, but was tricked into falling into the tunnels, enabling the TARDIS crew to escape. (TV: The Chase)