He's primarily focused on:
* Supporting Sonic and the others in their battle against Eggman: Chris helps Sonic and Tails by piloting the X Tornado, using it to support their fight against Eggman's final attack.
* Saying goodbye to Sonic and the others: As the episode concludes, Chris watches the heroes disappear into the portal, knowing they're returning to their own dimension. He is saddened by their departure but acknowledges that they must return home.
However, this episode marks a significant turning point for Chris:
* He's forced to face the reality of Sonic and the others leaving Earth: Chris understands that this is a permanent goodbye and he won't see them again. This brings a sense of closure to his time with the heroes.
* He begins to grow up and move on: The experience of being part of the fight against Eggman has made him more mature and prepared to face the challenges of life without Sonic.
While there isn't any dramatic event specifically focused on Chris in this episode, it's crucial to note that it represents a powerful turning point for him, as he lets go of the past and looks towards his future.