Retirees Karin, Gerhard and Philippa are not in the mood for Nordic walking and seniors' courses at the university. When Philippa, who is living life to the full as Leonie's godmother, helps the two to unexpected grandparenthood, they suddenly have two "lively" god-grandchildren to look after, a huge bouncy castle standing in the garden and Lego bricks stuck to their feet.
as Karin
as Harald
as Lilly
as Philippa
as Gerhard
as Zeitungsbote
as Antje
as Tobias
as Leonie
as Leonie
as Viktor
as Leiterin Großelterndienst
as Elena
as Karin Mertens
as Petra Heller
as Polizist
as Britt
as Jannik
as Merle
as Kai
as Connor
as Colin
as Filialleiter
as Jugendlicher
as Verehrer
as Lehrerin
as Jens Wagner
as Julia Engler
as Mutter von Connor
as Annika
as Au-Pair-Vater
as Sanitäter (uncredited)