The Johnston family throws a big bash to celebrate Jonah and Liz's birthdays, and Liz's friend James comes; the party acts as Liz's last hurrah before she gets leg surgery.

After yoga fails to inspire the family to get active, Amber & Trent get bikes for everyone but Emma and Alex struggle without training wheels. Meanwhile, Trent and Amber surprise the family with matching tattoos but Jonah's not feeling them!