Shoshanna tries to balance her time at college between sex and studying, while Marnie must accept she and Charlie are through. Also, Adam and Hannah and host a dinner party.

Hannah, Shoshanna and Adam take a road trip; Marnie moves into her own place; Hannah seeks inspiration to meet her editor's deadline.

Adam's eccentric sister arrives unannounced; Marnie becomes controlling over Hannah's 25th birthday party; Ray settles into his new role as manager at the new restaurant.

Hannah is warned that Adam will change since he has been cast in a Broadway play; Jessa gets an unexpected visit from Jasper; the group celebrates Adam's success; Marnie is captivated by Adam's cast mate.

Hannah worries about her relationship with Adam; Marnie starts working at an art gallery; Shoshanna surprises Jessa.