A new Shen-Gong-Wu is revealed, the Rio Reverso! A Wu that can change any object into its original form. Jack goes after it and with some help from Wuya Jack receives the Rio Reverso. Jack plots a plan to make an army of baby Dinosaurs made from oil. Wuya steals Jacks Rio Reverso and Wuya steals Jacks idea of an army of Dinosaurs and she ends up creating an adult T-Rex. How will the Wudai Warriors face this Dinosaur?