Season finale. Pressure builds as Ella preps for a big day. Kai struggles to share his secret. Nurse Steve encourages Grady to face his feelings.

The origins of Ella's "live each moment to the fullest" attitude come to light.

Kai plans a series of exhilarating adventures, but Ella suspects he's hiding his true intentions. Grady takes up a new sport to impress friends.

At her first post-treatment sleepover, Ella navigates excitement and nerves. Grady enjoys being an only child for the night.

Ella gets the chance to meet her favorite pop star and tries to make the most of the opportunity.

The McCaffreys embark on a spontaneous camping trip. Ximena and Kai put their friendship to the test at an escape room.

A flashback offers a glimpse into Ella's interests—and anxieties—before everything changed. Grady and his dad search for a new shared hobby.

Ella searches for swimwear after being invited to a pool party. Grady makes a plan to step out of Ella's shadow at school.

As Ella encourages Kai to live in the moment, she attempts to let go of her past with Ximena. Grady discovers a new passion.

A clean bill of health means a new beginning for Ella, but going back to school tests her can-do spirit.