Martin has an interesting time during his week with the kids balancing masculinity and attending to all of their needs equally. Lena learns she must loosen up if she wants to enjoy life to the fullest.

Instead of turning to online dating, Lena steps outside of her comfort zone in the real world. Martin finishes dance lessons and plans to set things right with Lena as what would have been their 16th wedding anniversary approaches.

Lena goes out on another date with Wes, whom she's smitten with; but unbeknownst to her, Martin is doing his best to take care of a sick Milo. Meanwhile, Maya makes a decision on whether or not to become a single mother.

Lena and Martin must decide the best way to host Milo's upcoming birthday party based on their new system of boundaries. Meanwhile, Martin is pleasantly surprised when Lena shares a birthday invite with an unforeseen guest.