Allura travels to the Balmera to acquire a powerful crystal. When she is about to leave with the crystal, the panoptic Ro-Beast from their last encounter prompts her to call on the Paladins for help. The creature, now merged with part of the encasing crystal it was once in, makes its way to the Castle as Allura goes skyward to protect the Balmera. Allura warps in the Paladins who regroup to their Lions to form Voltron. As they fight it, the team utilize their new weapons to subdue the Robeast and form Voltron to finally destroy the monster. Back on board the Castle, it is more apparent that since learning Keith's part Galra, Allura has a cold attitude to him. On the Olkarian home world, the super teludav is operational, and the team reminisce about their time since coming together. Meanwhile, Thace makes the error of returning for a spy device he planted, only for the Druids to intercept and capture him.
For millennia, the evil Galra Empire has plagued the universe by conquering planets and destroying their inhabitants. The only known threat to the empire's power and plans, is the legendary "Defender of the Universe" Voltron, a 100 meter tall robot warrior composed of five lion mechas whose whereabouts are presumed to be unknown. The Galra Empire's path of conquest and search for Voltron has led them to Earth's solar system. A group of space pilots-Shiro, Keith, Lance, Pidge, and Hunk-discover the blue lion and immediately get swept up into the Galran War. They meet Princess Allura, become the next Paladins, and reunite the five lions to form Voltron and free the universe from the Galra Empire.
**NOTE: Even though Netflix releases all episodes of Voltron: Legendary Defender on one day, they are portrayed on the TV Calendar as airing one episode a day, for ease of visualisation.