Dan learns that Bull slept with his visiting sister, and Bull decides to marry Dan's sister in order to regain his trust.

Harry may lose the woman of his dreams when he starts taking Dan's advice on how to date her. Mac has a run of bad luck and Quan Lee gives him her villages remedies for it.

Dan confidently struts his stuff at a charity bachelor auction with unexpected results, while Christine is a bundle of nerves over leaving her child and Tony.