Chemical Reactions

When Marin and Cash make a bet to see who can make the best stew, Marin ventures into the forest to find a special root. She gets lost and Jack, who is filming a nature documentary, finds her. Meanwhile, the newly-engaged Lynn wishes Jack would exhibit more passion toward her, like what she sees in Ben and Buzz toward their wives; Patrick wants to change his surname to better reflect who he really is; and Sara, who is no longer in the "service" business, gets a summons from her ex-husband, who now wants full custody of their son.