What T-shirt goes with flirting with your hot, twenty-something instructor while going through an existential crisis? The one with the overly caffeinated cat, disassociating raccoon, or wine-addict duck?

When thirty-seven-year-old Saoirse "Sir" Hooper wins a free class at the EverGreen & Fit Studios, she receives another surprise: Beau Bishop, her young, chipper fitness instructor. Stunned by his good looks and even sunnier outlook, Sir signs up for waaayyy too many of his personal training sessions. As the sessions increase in their intensity, Sir swears he's flirting back, but there is no way. With a woman her age?

On second thought, he did just call her a good girl after torturing her with never-ending burpee reps.

Is Beau boldly leaping over their age gap or is he luring her into signing up for more of those expensive one-on-one workouts to make himself more money?

Hilarious, passionate, and at times tender, Personal Best explores what it means to embrace discomfort and give the second act a well-deserved 110%.