Crayon Shin-chan Movie 10: The Storm Called: Battle of the Warring States

While playing in the backyard, five-year-old Shinnosuke Nohara stumbles across an ancient wooden box containing a handwritten letter written in his own scrawl. Inadvertently transported back through time to 1574 during the Warring States Sengoku period, Shin-chan arrives in the small province of Kasuga. There, he accidentally saves the life of noble samurai general Matabe Ijiri from a sniper ambush. Soon, Hiroshi, Misae, and baby Himawari arrive in their family car using the time rift, becoming honored guests of Princess Ren while a rival warlord's massive invasion army marches toward Kasuga.