Hiccup had finally gotten a day off of Chief duties so he decided to spend the day with his daughter Zephyr. Astrid decided to spend the day with Valka and help around the village. Hiccup and Zephyr played all day together. Hiccup had been playing chase with Zephyr until she kept knocking things down and saw something about to fall on her. Hiccup moved Zephyr out of the way but in the process Hiccup got injured. Hiccup ended up losing his memories, and Zephyr blames herself for her father injury. But will she figure out a solution to this?