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Greb (Greg) and Treb (Ben) are identical twins, formerly triplets.  Their much loved brother, Dreb died, having been murdered, the killer unknown.  They visit a casino in Alice Springs shortly after Dreb’s murder and meet Gemma, an incompetent croupier, who they attempt to win money from on the blackjack table.  After missing 5 hours at the casino Greb theorises that it is perhaps them that have died rather than Dreb (see Episode 2).