Tulip makes it to the front of the train and is faced with a choice.

The gang is confronted by a strange new force on a Ball Pit Car adventure.

Tulip takes a risk trusting an old foe.

Mirror Tulip finds herself in the wasteland outside the train.

The gang reorders The Apex, but what will the new order be?

Tulip has to face her past.

Mirror Tulip fights for the right to make her own choices.

The Apex are just a car away! They're almost home! But first they have to make it through a forest full of pinecone camp counselors.

Someone mysterious invites Jesse and Mirror Tulip into a mall car.

The gang meets a familiar face in a mirrored car.

Mirror Tulip searches for answers.

The gang is finally ready to meet The Apex again, but keeping secrets has consequences.

Ryan and Min-Gi are forced to satisfy Pig Baby with the perfect dessert.

The kids of The Apex raid a musical car before descending on a village of unsuspecting turtles - but before they can complete their mission, leaders Grace and Simon are separated from the pack under mysterious circumstances.

With a growing rift forming between them, Ryan and Min-Gi attempt to convince a bouncer to let them enter the rave.

Arriving in a Wild West town, Ryan, Min-Gi, and Kez attempt to escape the locals.

As the duo nears Kez's home, they are forced to contend both with all their enemies and their messy relationship.

Ryan and Min-Gi are forced to face the truth and a final challenge if they ever want to go home.

Waking up on the train together, Ryan and Min-Gi are met by Kez, whose mistake has left the boys in a predicament.

Grace and Simon look on the bright side and hope that this will be like a mini-vacation from their responsibilities as leaders of The Apex.

With their instruments back, Ryan and Min-Gi have to play their first show since they were kids, but it's no easy emotional feat.

The boys' disintegrating relationship finally comes to a head when they end up in a haunted art museum with seemingly no exit.

Having finally arrived at Kez's home, Ryan and Min-Gi learn of her biggest secret and regret.

Once great friends, Ryan and Min-Gi's relationship slowly dissolves over the course of years of disgruntlement, culminating with their reunion in the restaurant.