Team RWBY wakes up to find out that they are in a room with a computer and a table. Batman sits in front of them. He was waiting for them to wake up from the gas. "All four of you girls wanted me, here I am." Team RWBY is in shock because the man bat can talk. Jaune said that it means it's human.
Ruby says out loud. "We thought you were one of Grimm's creatures." Batman replies "Who is this Grimm?" Blake speaks up."The legend goes: Man was born from dust, strong, wise and resourceful but we were born from an unforgiving world. An inevitable darkness, creatures of destruction. The creatures of Grimm set their sight on man and all of his creations. These forces clashed and it seemed the darkness was intent on returning man's brief existence to the void. Man evened the odds with something called dust as we use today. Dust brought us strength, civilization and life." Batman sits there and contemplates.'She is right about the creatures, I have seen some but never fought them.'
"Are you working with Roman Torchwick?" RWBY yells at him "No!" Yang says "we are his enemy and the rest of Shining Beacon". Batman's lie detector in his lens prove negative. "Your telling me this was a misunderstanding?" Ruby replies, "I guess so".
Weiss says,"Can I ask you one thing? Where did you come from and can you untie us?" "Alright." Batman unties them and starts to explain where he came from."In my world my friends and I, The Justice League, were fighting a new god by the name of Darkseid. Detective Dan Turpin discovered the dying body of Darkseid's son, Orion, another new god. The Justice League allies with the Green Lantern Corps which is an intergalactic military/police force. They help us investigate the murder, deducing the cause of death to be a bullet of Radion, a substance toxic to New Gods. New God Granny Goodness, possessing the body of Green Lantern Kraken, stymied the investigation by framing Hal Jordan for the murder. When I deduced her true identity, she captured me and teleported me to Command D; a government bio-chemical weapons facility beneath the city. Being locked for who knows how long I escaped. I used the same bullet that killed Orion to kill Darkseid . I shot him in the shoulder but I was hit by his power called Omega Sanction which teleported me here, with twelve teenagers standing around me. I escaped to this building and tried to stop the man name Roman Torchwick but your friend got in the way. I spotted the four of you and captured you. Now we're here The only thing I can think of right now is if my world is gone and I have to stay in this world I will fight crime."
RWBY was looking at each other with confused looks. "We're sorry to here that but we are the good people of this world." Ruby says to Batman. "Can we have your name?" "Just call me Batman" Weiss arrogantly says, "Of course, it's Batman, we have been calling you the man bat the whole time." Batman one question before we leave Ruby implies. "Can you help us with Roman Torchwick or can you come to our school?" All of them have smiling faces and are eagerly waiting for his response."Well sorry girls I'm not much of a people person and I think I am a little to old for school but if you need me." Batman pulls out four ear pieces"call me." RWBY leaves the warehouse after Batman fixed their weapons. "He's a pretty cool guy," Yang says "What do you think Ruby?" "I think so too, I like the cool gadgets he has." What do you think Blake?"He reminds me of someone I read out of a book" Weiss what do you think? "I guess he is cool just can't believe he beat us let's just go back to Beacon."
Meanwhile in Gotham... Joker is sitting in his chair thinking to himself. 'Without Batman crime has no punchline; the only thing I know is he went to another world. "WAIT I GOT IT! If I follow him I can terrorize the world he is in. Then crime will have a punchline again. I'll break into the batcave again and see if there is anything useful. While I am there I can have some bat snacks." Joker is walking out the door when Harley spots him. "Where are you going my dear." "Oh to do some business, don't wait up on me." Later that night Joker breaks into the batcave. He hacks the bat computer to see if there are any leads. Joker finds nothing of no use except a time travel bubble that Brainiac had created. "If I can link the time bubble to Batman's location this will be glorious. I just need someone with a powerful mech suit and a group of Batman's enemies. Now I have the perfect plan HAHAHAHAHAHAH."