A geologically unstable planet where renegade Ferengi overpowered a Federation science team in 2369 and later put the captured Enterprise-D crew to work as miners.
Ligos VII is a volcanic planet featured in the sixth-season Next Generation episode Rascals.
In 2369 the Enterprise-D answers a distress call from a science team stationed there. On the way a shuttle carrying Picard, Guinan, Ro Laren and Keiko O'Brien passes through an energy field, and a transporter accident returns the four as twelve-year-old children with their adult minds intact.
On reaching the planet the ship is ambushed by two surplus Klingon birds-of-prey crewed by Ferengi under DaiMon Lurin, who have already taken the science station. They board the Enterprise and send most of the adults down to dig for vendarite. Left aboard with the ship's children, the four young officers, helped by Alexander, outwit the Ferengi and retake the ship before the transporter restores them.