After Sarah Pennington’s last mission, the Griffin Order decided to destroy all time travelling devices and permanently ban time travel. This gives Sarah an opportunity to take some time off and reconnect with family and her old friend, Julie. A renowned explorer, Julie has discovered the location of the legendary Buried Kingdom! She wants Sarah to accompany on her quest to reach it. What should be a happy reunion between friends quickly turns into a life-or-death mission when the Dragon Clan, which possess a strange power hidden in the darkest depths of the sea, kidnap Julie! Now it’s up to Sarah and her cute little helper to search the kingdom for answers and find a way to save her dearest friend!