Tamra Barney celebrates the opening of her new gym, CUT Fitness — but the festivities wouldn't be complete without a bit of drama. Vicki Gunvalson invites Alexis Bellino to the party, and Alexis is stunned. She's even more surprised when she hears Tamra is OK with her coming. Alexis does some inviting of her own and asks newcomer Lydia McLaughlin to attend the opening as well, which doesn't quite sit well with Tamra. Gretchen deals with some big issues of her own, as she and Slade try to keep a united front in the face of some daungint personal challenges. On the night of Tamra's big event, things take an ugly turn and she wonders if letting Alexis come was a huge mistake.