Ninja Kids!!! Summer Mission Impossible (2013) is a Action, Comedy film that follows at a time when nations are warring, a sword with mysterious power called "Heaven's Sword" is stolen. The sword is said to give its wielder the power to conquer the world. Various ninja all over Dokutake Castle and beyond also manuevering for this sword of immense power. Rantaro and his classmates are assigned to retrieve the stolen sword, their first real ninja mission. Ninja Kids!!! Summer Mission Impossible is not currently listed with streaming providers in your selected region, but availability can change over time. It has a user rating of 5.8 out of 10 from 6 votes. Fans of action movies may also want to explore similar titles below.