In this corner: Madison "Mad Dog" Bennett: Venture capitalist. Runs on instincts and caffeine. Fearless (unless it's love).

In this corner: Maurice "Murderface" Mayfield: Former MMA fighter, Eternal optimist. Has a collection of designer sneakers. Also collects crazy exes.

Sparks fly between Maddie and Mo when she invests in his MMA-themed gyms. But Mo is known for his flavor-of-the-month romances. Maddie thinks she's watching the clock run out on them when Mo's ex drops off a package - the son he never knew he had.

Maddie and Mo's wedding is interrupted, and Maddie thinks she must choose between flight or fight. Fighting is in her comfort zone, but love? Not so much. Working things through? Even less. It won't be an easy trip down the aisle.