As the Shadow King's minions begin to stir, the current Guardians must choose their successors. The Fire Kingdom selects Kai, a spirited and brave young man who dreams of becoming a Guardian like his father but struggles to control his fiery powers. In the Water Kingdom, Lila, a calm and intelligent girl with healing abilities and a mysterious connection to sea dragons, is chosen. Terra, a strong and kind-hearted boy from the Earth Kingdom who can communicate with animals and manipulate plants, is next. Finally, Zephyr, a quick-witted and agile girl from the Air Kingdom who can control the wind and excels in strategic thinking, completes the group.
Each kingdom holds a ceremony to honor the selection of their new Guardian. Kai's ceremony is a grand display of fire dances and pyrotechnics, reflecting his kingdom's vibrant culture. Lila's selection is celebrated with a serene gathering by the ocean, where she is blessed by the ancient sea dragon, Thalassa. Terra's ceremony takes place in a lush forest, with animals and plants reacting to his presence. Zephyr's selection is marked by a high-flying aerial performance, showcasing her kingdom's affinity with the skies.