What if Mulan had to travel to the Underworld? When Captain Shang is mortally wounded in battle, Mulan must travel to the Underworld, Diyu, in order to save him from certain death. But King Yama, the ruler of Diyu, is not willing to give Shang up easily. With the help of Shang's great lion guardian ShiShi, Mulan must find Shang's spirit and leave by sunrise, or become King Yama's prisoner forever. Mulan, still disguised as the soldier Ping, wrestles with the decision whether or not to reveal her true identity to her closest friend. Will Mulan be able to save Shang before it's too late?