A Martian uncle, his nephew and and their dog are stuck on Earth after their spaceship crash landed. Not wanting to be discovered, the Martians assume the identity of Katy's Uncle Martin and his nephew Andy. Katy and his uncle Tim O'Haras are the only ones who know their real identity. Reappeared in 1977 as a segment on The Groovie Goolies and Friends.
After exploring the sewers following the destruction of their homes, the Ferals discover a cable to a TV station, and start their own TV show with the name "Feral TV".
In this reboot of 1974 series, Roobarb and Custard Too follows Green dog named Roobarb and the Pink cat named Custard as they go on a crazy adventures.