Sophomore year is off to a good start for the girls until Katie twists her ankle. That gives Alexa something else to focus on while waiting to hear from her doctor.

Katie applies for a job at the coffee shop without telling her mom. When Lucas and Gwenny go out on a date, the girls are determined to sabotage it.

Alexa gets the doctor's OK to play basketball but struggles on the court. A heart-to-heart with another young cancer patient reminds her of how far she has come.

When Alexa and Dylan get into a fight right before the big Halloween party, Katie's sure she can fix it. But what if they're not meant to be together?

Alexa claims she's fine -- so the girls take her shopping for a Sweet 16 dress. Back at the house, a stressed-out Lucas goes to Dave for dating advice.

When Katie needs help prepping for a math midterm, Alexa offers to ask Dylan. Meanwhile, Jennifer still doesn't know her daughter has a job.

Alexa's working overtime to keep Christmas on track. But finding her old hospital bag stirs up memories that throw her off her holiday game.

It's New Year's Eve, and a bold new Katie is finally ready to confess her feelings for Ryan. Cue the fireworks -- and a flaming espresso machine!

An expensive mistake means Katie can't afford to go to London. But she's keeping it a secret so she doesn't ruin Alexa's epic birthday party.