ThunderCats (2011) Episode 1:
" The Sword of Omens - Omens Part 1"
Lion-O, who is constantly sneaking out of the palace, is caught up in a fight with a helpless dog and some "alley cats". He decides to step in and help. When it looks like he's outmatched, he's suddenly helped by a stranger: Cheetara.
Lion-O shows Cheetara the reason he came to that part of town, technology, which he buys from a dealer and tries to find out how it works.
Unfortunately, he discovers he's late for a ritual of initiation and leaves. He arrives at the palace late and then undergoes the ritual of being chosen by the Sword of Omens to be the next king of Thundera. He has a vision involving a demonic being with glowing red eyes. Not knowing if anyone will believe what he's seen, he makes up a story and leaves with Tygra.
His father Claudus does not feel Lion-O is ready to be king, being too lenient and easily distracted by flights of fancy and myths of ancient technology. Soon after, King Claudus welcomes the return of General Grune, his old friend. All the people are saddened to learn the General Panthro had fallen in battle.
Claudus holds a celebration in both Grune's honor and in memory of the fallen Panthro. During the event, Lion-O defends a pair of captured Lizards and convinces his father to release them.
ThunderCats (2011) Episode 2:
" Ancient Spirits of Evil - Omens Part 2"
The next day, Thundera is attacked by Lizards who have acquired salvaged technology. It is soon discovered that Grune has joined the Lizards, and that Panthro is being held hostage. Lion-O comes to his father's aid, allowing Claudus to rescue Panthro. But 'Panthro' murders the king and reveals himself to be Mumm-Ra, an ancient nemesis of the Thundercats, in disguise.
Lion-O and Tygra are captured along with Jaga and Cheetara. However, due to his kindess to the Lizard prisoners, Lion-O was given a key hidden in his meal, allowing him to escape with Tygra to mount a rescue.
Mumm-Ra wants the stone in the sword which he claims is his, and tortures Jaga to get him to remove a curse that prevents evil from touching the Sword of Omens. Lion-O and Tygra rescue Jaga and Cheetara, who is now revealed to be one of Jaga’s clerics, with Lion-O grabbing the sword to blast Mumm-Ra out into open as the rising sun's rays harm him.
Forced to leave Jaga, who sacrifices himself to ensure their escape, Lion-O, Tygra, and Cheetara undertake the quest to find the Book of Omens.
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