Ep 1. Back in Black

In the season 3 premiere of Generator Rex, titled "Back in Black," we find Rex and the rest of the crew in the midst of a major crisis. The world is under attack from a new and dangerous enemy known as the Black Knight, who has managed to steal some of the world's most powerful nanites.

With the help of his trusty sidekick Bobo, Rex sets out to stop the Black Knight and retrieve the stolen nanites before it's too late. However, things quickly take a turn for the worse when Rex realizes that the Black Knight is actually his long-lost brother, Caesar.

As the two brothers face off against each other, it becomes clear that there is a lot of bad blood between them. Caesar blames Rex for their father's death and believes that his brother has betrayed him by joining Providence, the organization that has kept him imprisoned for years.

Despite their rocky relationship, Rex is determined to stop his brother and save the world from destruction. With the help of his fellow heroes and some new and powerful technology, he sets out on a dangerous mission to take down the Black Knight and prove his loyalty to Providence.

But as Rex gets closer to his brother and the truth behind his actions, he begins to question his own loyalties and wonder if he has been on the right side all along. With everything he's ever known and believed in hanging in the balance, Rex must make a decision that could ultimately determine the fate of the world.

"Back in Black" is an action-packed and emotional episode that delves deep into Rex's backstory and explores the complex relationship between two estranged brothers. With its high-stakes plot twists and heart-pumping action scenes, it's sure to be a fan-favorite among Generator Rex fans.