After being attacked by a mysterious assailant in the Everfree Forest, Pinkie Pie discovers that her wounds may leave a scar on her cutie mark. She remains optimistic about her recovery until Twilight's research reveals that any sort of physical trauma that affects a cutie mark's appearance may foreshadow a change in that pony's destiny. Pinkie struggles to fight incoming negativity as she ponders whether making everypony smile is her true purpose in life.