When They Were Last Together: Mother's Mercy (S5E10)
What Happened Then: Sam left Castle Black for Oldtown, ready to become the Night's Watch's Maester, and they toast to his return.
What Happens Now: Sam has just delivered life-changing news to Jon, that he is the son of Rhaegar Targaryen and Lyanna Stark. He's going to have to help his friend deal with that bombshell, with Sam seemingly intent on pushing Jon's claim to the Iron Throne.
