Sarah and her friends engage in one of their least favorite pastimes: tracking down a nest of Slitheen bent on destroying the world. Just as it looks as though the Slitheen have the advantage, two more Slitheen-like creatures appear, neutralizing both the Slitheen and their world-destroying equipment. The newcomers introduce themselves as members of the Blathereen family, and claim to be devoted to law and order – by way of bringing the last remaining members of the Slitheen family to justice. The Blathereen apologize for the Slitheen’s behavior over the years and offers a gift to humanity as an apology, a vegetable which they say will eliminate famine on Earth. Sarah asks for time to study the gift before distributing it to the rest of the Earth… but the gift has its own timetable for spreading across the planet, with or without human assistance.
written by Rupert Laight
directed by Alice Troughton
music by Sam Watts / title music by Murray Gold
Guest Cast: Alexander Armstrong (Mr. Smith), John Leeson (voice of K-9), Miriam Margolyes (voice of Leef Blathereen), Simon Callow (voice of Tree Blathereen), Paul Kasey (Leef Blathereen), Ruari Mears (Tree Blathereen), Calvin Dean (Chris), Jimmy Vee (Chris Slitheen), Edward Judge (Dave), Sarah Paul (Miss Jerome)
Notes: Actor Simon Callow had previously played Charles Dickens in The Unquiet Dead, the third episode of the new Doctor Who series in 2005, and had been rumored as a contender for the role of the Doctor himself. Miriam Margolyes made multiple appearances in Blackadder. The Blathereen do have a point: the Slitheen have a lot to answer for: they crop up persistently in the Doctor Who episodes Aliens Of London, World War Three and Bad Wolf, and they’ve kept Sarah Jane & company busy in Revenge Of The Slitheen and The Lost Boy. The real reason the Slitheen keep popping up: the partly-animatronic Slitheen costumes are still among the most expensive investments made in the new Doctor Who series (and its subsequent spinoffs).
LogBook entry by Earl Green