Tadashi is ignoring Hiro to work on other projects and he has no idea why. Meanwhile, Baymax is undergoing strange malfunctions and is instructed to find a hero. Now Hiro is wound up in being a superhero behind his brother's back, trying to defeat the Yokai while recruiting other members as well. Will Tadashi ever find out what Hiro has been up to?

Hiro is busy preparing for the showcase while also helping his aunt in the café, but life changes when he keeps having nightmares about a fire and a voice telling him to keep holding on to his brother and to never let him go because once he does he will never return. Now with Hiro clinging onto his brother for dear life, can he save him from something the nightmares may foretell?

Everything is normal after the two left the Unknown, but soon Wirt finds out that the Beast has left a curse on him. Wirt now spends all his time writing dark poetry and thinking dark thoughts. He starts resenting his parents, his brother, his friends, all due to a curse that will turn him into the Beast himself. Now there is only one person who can save him. Gregory.

After his death, Tadashi became a ghost whose sole purpose is to protect Hiro and follow him wherever he goes, keeping him out of trouble. Hiro is having strange feelings like someone is there with him but he can't see anyone. Soon, he starts seeing the ghost of his brother and tries to adjust. Hiro realizes that he's not alone, and he never was. Tadashi was here, and now he knows.

Before the war, Tadashi ended up with a seemingly normal crown, but it was far from ordinary. It gives him the powers of the ice and snow, but it cost him his sanity. He's afraid of hurting anyone, especially Hiro. Tadashi has to survive the war with Hiro who is now a bloodsucking vampire. 1000 years later, Tadashi is king of the cold and now Hiro has to help him remember himself.

Greg's life wasn't always easy. His parents died when he was a baby and his brother mysteriously disappeared one day. Since then he's been living with a family of frogs. When he asks to go on a journey, he can only if Jason goes along with him. The two meet a grumpy bluebird named Beatrice who is hiding something. Who is the person following them, and why does he seem so familiar?