sentences:  Entrusted to his daughter Rita, Groizer X escapes the clutches of the Gaira and lands in Japan, where pilot Joe Kaisaka meets a wounded Rita.Taking up the controls of Groizer X, Jo and Rita fight against the Gaira invasion.The anime was created by Go Nagai as a side project during the time he was busy with the various Mazinger series, Groizer X nevertheless managed to be converted into a TV series.