The Isle of Arran was the location of a valuable ruby which was sought by Penelope Creighton-Ward and Parker, as well as a mysterious man who used the call sign "Hawk".
At some point while on the island, Fab One was damaged in some way with later reports stating that it had been repaired and made fully operational, allowing pursuit of the Hawk to continue. The Hawk had previously made several attacks on Penelope and Parker in order to reach the hiding place of the ruby first. (PROSE: FAB1 Back in Action! [+]TV Century 21 cover stories (City Magazines, 1965).)