Vic the Viking (2013)

When the spoiled, bored king passes Flake village, he's attracted by the smell of Hilva's home-baked cake and orders the cook conscripted for his palace kitchen. When Halvar objects, the king orders him jailed. The empty village treasury chest seems useless to buy her back, but inspires Wickie to conjure a way out. He pretends it contains an invisible armor, which renders the wearer invincible, just what the weakling king wants to become the greatest Viking warrior. The ploy works hilariously well.