Blair is awaiting her mom and, when she arrives, she’s not ready for the kind of pressure momma puts on her. Meanwhile, Serena does some volunteer work: she tells Dan she’ll help him find somewhere to live. But, while spending time together, they’re surprised to discover that they still have strong feelings for one another. Chuck digs deeper into his dad’s criminal past and gets help from Ivy and Nate. On the next Gossip Girl!