David Ashby, Sean James Murphy and Aldo Mignone star as allied spies Jackson, Tucker, and Pierre, who are working undercover in German bar The Black Dog, lying in wait for Hitler, who is a fan of sexy performer Madam Julietta and her Sinful Thighs. But as the trio spring their trap, Hitler's female guards sniff a special potion made from black diamonds which renders them bullet-proof, and the attempt on the dictator's life is foiled.
Having bungled their mission, the trio's eagle-headed superior, Colonel Chestbridge (Tilman Vogler), teams them up with two beautiful female spies, Russian brunette Ilsa (Natasa Ristic) and English blonde Claire (Amanda Simons), sending the five of them on a mission to foil a diamond heist before travelling undercover to Nassau, where Hitler and Goring await the precious stones.
Diamond Girls is listed as Episode 0, which means that it was originally shown as a series of short 'webisodes' on YouTube before the TV show was broadcast the following year by SBS. This prequel sets the general tone for the whole series and introduces some of its recurring themes, but although it features such craziness as a talking dog cop show and a basement full of Nazi ape-men, it still isn't quite as thoroughly demented or as entertaining overall as some of the later episodes.
Funniest moment: several Nazi air hostesses are unceremoniously thrown from an aeroplane in mid-flight.