Hitler's Germany. A little shy 10-year-old Johannes Betsler, a member of the Hitler Youth and a big fan of the official course, has a best friend - an imaginary Adolf Hitler. Although the boy himself can not yet learn to tie his shoelaces, he goes for a weekend to a military-patriotic camp, where, not daring to kill a rabbit, gets the nickname Jojo Rabbit. And afterward, trying to prove to others his courage, the guy accidentally explodes on a grenade. But soon Jojo will have a better reason for excitement than his own scars - he finds out that his mother is hiding a Jewish girl in the house.