When school shuts down, Chester, Riley and Greta spend a blissful and intimate day together. With Chester distracted by a chance encounter with Sam, Greta and Riley explore a deeper level of their relationship.

The GSA embarks on their long-awaited trip to San Francisco. Greta and Riley navigate a new awkwardness, Nathan and Naomi turn a fun game into a merciless sibling takedown, and Sam moves his questions for Chester offline.