Part 1: Lyra's Pyro Predicament
Part 2: Twilight's Demoman Devastation
Part 3: King Sombra's Robotic Retaliation

King Sombra was soundly defeated by Princess Cadance and Shining Armor almost a year ago, and the Crystal Empire was free. Now, after a teleportation mishap, a lone Engineer from Gray Mann's massive robotic army has found itself in the mountains just on the border of the Empire with one task in mind: complete the experimental Lvl. 4 Teleporter and bring the robotic forces to Equestria...but what other dark forces might be laying dormant in those caves?