The series of emotional events that will decide Marin and Jack's future continues: While anxiously awaiting Marin's return to Elmo, Jack is caught off guard when someone from his not so distant past comes to town with a secret. Meanwhile, Annie is still upset with Patrick that he neglected her at Thanksgiving dinner, Jane and Sam -- aka Plow Guy -- spend romantic time in New York, Theresa and Ben wonder what's next for them, and Buzz faces a medical crisis.