Ever wondered what form your favorite Transformers would take if they existed in different eras? The 'bots are transplanted to the Industrial Revolution, where a charismatic hammer-man named John Henry discovers that a steam drill is really an alien robot named Bumblebee. Before he can process this information, the pair are attacked by Decepticons disguised as tanks, trains and walking engines.
Transformers: Evolutions - Hearts of Steel SC