Greylock is threatened with a massive flood as unseasonably warm weather melts the snow from the recent blizzard. Knowing Greylock will be underwater in hours, Sarah must ask for help from the last person she wants to rely on—Paul.

Sarah and Paul start to make headway in their relationship. Ellen surprises everyone by coming home earlier than expected. Danny accidentally makes things harder for Corinne, leaving her with a tough choice about some of the people in her life.