Four heros in a train one named Zero which can disapear and kill his enimies.The second hero named Salvador uses both of his weapons at once.The third named Axton can set turrents.The forth which is a siren the rareist thing on Pandora her name is Maya Which she can freeze people.There in a train thinking this is a fine train but a man named Jack who wants to kill the vault hunters he also owns hyperian robots.When the vault hunters are in the train Jack hijacked the train Axton lays a turrent and uses his rocket to blow up the robots.Then Maya freezes a robot in the air and throws the robot out of the train.After that Salvador pops out of the hole that Maya made by throwin the robot out of the train,and Salvador pulls out two of his miniguns to kill some robots.On top of the train Zero takes out his sowrd and cuts a guy coverd in robot stuff in half then stabs another guy in the gut.After that the vault hunters meet up and enter a room filled with exspolseves that Jack set and which blows up the train and throw the vault hunters in a snowing glacier.