While Marty heads to San Diego for a tech convention and Courtney is away for the weekend, Tina's insistence on babysitting Daphne sparks a baby-proofing fiasco that leaves Calvin and Dave unexpectedly locked inside the bathroom.

A change of plans sends Mercedes and Tina on a memorable night out that prompts several couples to take a closer look at what they truly want from their relationships. Meanwhile, Dave's visit to Gemma's school sparks an honest conversation about her feelings toward her job.