Earth Pony industrialist and inventor Epona Stark had everything she could hope for: wealth, fame, a lucritive partnership with the Equestrian Military and stallions at her beck and call. But when she's attacked and ponynapped by an anti-diarchy terrorist group after a weapons presentation to Princess Celestia, she's left with a literal broken heart and a new mission in life.

Assisted by her dragon assistant Sparks, her beleguered unicorn secretary Pepper Pot, and her Equestrian Military liason Dusty Roads, Epona Stark will rise to become a metal-clad superheroine, Iron Mare. But will her brilliant mind and magic-tech suit of armor be able to protect her from the enemies who are scheming to tear her down?

Part of the Marevel Ultimates series.

(Teen for Violence and Implied Sex)