Beth Probst is a non-athlete. Or so she believes. After a few too-many mojitos at a dinner party with friends (including a few real runners) she decides to give running a try. So she signs up for a half-marathon. After all, everyone seems to be doing it. And she's Finnish-stubborn. She's never run, but... how hard can it be? After a not-even-mediocre first attempt, one plus-size would-be runner discovers a truth about breaking into running from a sedentary state: it's hard. Really hard. Like... F-bomb hard. But instead of quitting, she digs in and discovers the mental, physical, and wardrobe challenges of her undertaking-- and the rewards.