Ouka Resigns / Keroro Must Survive
Ouka Nishizawa decides to retire to be more of a mother to Momoka. But is that what she really wants, deep down? Fuyuki joins the Keroro Platoon on a rescue mission to Area 51! Can they all avoid setting off the sneaky death flags? Source: crunchyroll
Aired 13/03/2011EP 355 - Ouka Resigns / Keroro Must Survive
Sgt. Frog
Keroro is a frog-like alien sent from his home planet on a mission to conquer Earth. But when his cover is blown, his battalion abandons him and he ends up in the home of the Hinata family. There, he's forced to do household chores and sleep in a dark basement that was once supposedly a prison cell haunted by the ghost of an innocent girl. He even spends his free time assembling Gundam model kits. During his stay, Keroro meets up with subordinates who were also stranded during their failed invasion.
(Source: Anime News Network)