Long before finding the All Spark on Earth or defeating the Fallen or being discovered in the Dark of the Moon the Autobots & Decepticons were influencing the American Industrial Revolution Or at least that''s what writer Chuck Dixon & artist Guido Guidi would have you believe in Evolutions Hearts of Steel Young inventor Tobias Muldoon didn''t impress Mr Twain or Mr Verne with his submarine prototype but his dreams of finding financing & support to build fantastic machines comes to pass with the help from some unlikely supporters
- Starscream Shockwave & a host of Decepticons Meanwhile Bumblebee is the lone Autobot roused from stasis by a small group of combatants hidden below ground for millennia But time has greatly changed the surface of the planet they once waged war upon & the wheels of progress have brought industry Soon Bumblebee will befriend a human
- a man named John Henry
- & begin a frantic lesson in living amongst humans during the Industrial Revolution A lesson that will teach both Autobots & Decepticons not to underestimate the power of man