Come soon to Fan Fiction is the first (or one of the first) RWBY/Legends of tomorrow. Also if things don't make sense then Prolongue will explain things.

In the trailer for RWBY it's a alternate time line story starts at the end of episode 1. For the legends of tomorrow it takes place in alternate time line in between end of season and beginning of season three.

The legends are celebrating the return of Leonard Snart and the defeat of legion of doom.

Mick Rory:"I good have you back partner."

Everyone clanged their cups.

As they clanged their cups the Waverider shakes.

Jax:"Gideon what's going on?"

Gideon (voice):"A massive breach caused by a major disturbance which is pulling us in I'm attempting to reverse course but the pull is too strong."

Martin Stein:"Gideon power to shields"

Gideon (voice):Already on it. 2 minutes until we enter breach."

Ray Palmer:This reminds me of Transformers:Fall of Cybertron. Where the Ark and Nemesis where sucked into the portal."

A story we never seen before.

Mick Rory:"Maybe we shouldn't have destroyed 'the spear of destiny'."

Jax tried to pilot the ship to break free of the breach's pull but the pull is too strong.

Jax:"I did everything I could the pull is too strong, we can't time scatter the breach is interfering with it, we're going to have to brace for impact."

The Waverider gets sucked into the breach.

Meanwhile in a alternate RWBY universe where Weiss never went to Atlas,where Yang decided to go after team RNJR earlier and caught up to them, where Blake didn't just runaway but also went into hiding somewhere in a forest near Mistal city.

In space the Waverider emerged from the breach and the breach closed.

Rip Hunter:"So we survived,Gideon identify which Earth-# we are orbiting."

Mick:How are we suppose to know which universe are when in?"

Gideon (voice):"The time masters installed data on most of the universes but I can't find this Earth in my database but I look though every fictional Earths from TV shows in by database and found one result."

Ray Palmer:"I hope it isn't a universe where we all evil or where good guys and bad guys switched places."

Gideon (voice):"No in the universe that represent the TV show... RWBY."

Sara:So we are in some universe where fictional anime exists... that is impossible."

Jax:"Stein didn't explain the multiverse... you know like the Earth where Super Girl exists, a Earth where Nazi won WWII..."

Martin Stein:"I get your point there is a possibility a universe based off a TV show or a movie could be possible, the multiverse has infinite Earths or in this case Remnant."

Snart:So there could be a universe where events, and people of 'Back to the Future' could exist."

Mick:"Or even where events of 'Jurassic Park' is real or maybe event where Godzilla exists."

Jax:"Gideon can you...

The Waverider shakes and start to crash to Remnant.

Rip Hunter:"Gideon what is going on?"

Gideon (voice):A meteorite hit the engines because shields are down from the breach."

Rip Hunter:"Prepare to abandon ship."

Epic music play as The legends ran to the escape pods and made it the mods as the Waverider entered the atmosphere. The starts to go quick

Rip Hunter:"Ok the first pod go to Mick and Snart."

Mick:"You better get us home after we land on the ground" as Mick and Snart went into the first pod and the pod ejected out after Mick finished his sentence.

Rip Hunter:"Jax and Martin Stein you two are next."

Jax:"I hope you know what you are doing Rip." The pod ejects out after Jax finished his sentence.

Rip Hunter:"Finally 4 pods have only have one seat so Palmer and..."

Ray Palmer:"I'm afraid the suit shrinking device got damaged when we went though the breach."

Rip Hunter:"Very well Ray Palmer you can go in."

Ray Palmer race to the pod and said "Good luck Rip" before the pod ejects.

Sara, Nate Heywood, Amaya Jiwe walks into their pods.

Amaya Jiwe:"What about you?"

Rip Hunter:"I need to steer the Waverider to an unpopulated area, fare well." Nate saluts before Rip presses the button which ejects the last 3 pods.

Rip runs to th bridge and hold his hands on steering controls.

Rip Hunter:"Ok Gideon chart a course to an unpopulated area. It have been an honor to be your captain Gideon.

Gideon (voice):"Right away sir. It have been an honor as well Rip."

The Waverider continue enter the atmosphere of Remnant.

On Remnant with Ruby, Weiss, Jaune, Nora, and Ren was sleeping when the sound Meteors crashing which they are actually the Waverider, and the Escape Pods woke them up.

Ruby:"Hmm a meteor shower."

Dramatic music plays.

Galvatron027 presents RWBY:Legends of the Remnant.

Warning random fighting scenes playing so if it doesn't make sense then you may stop reading here.

RWBY volume 4 opening song plays.

In Salem's domain we see the RWBY and the legends of tomorrow heros ighting the villains of RWBY and the Legends of Tomorrow.

We Start with Mick and Snart fighting 2 Grimm.

As Mick and Snart battled they used their Guns Burn/Freeze the Grimm to death.

Atom flying is fighting a group rouge Atlesian Knight-200s.

by shooting at t. Cinder Fall fighting Firestorm by fighting fire with Fire (literally) then Firestorm blasted Cinder Fall away. We see Ruby and Reverse-Flash fighting in a speed blitz battle. The White Canary is fighting Adam Taurus in a epic sword fight while at the same thing Blake fighting Vandal Salvage in a epic battle as well.Vixen and Rip Hunter is fighting Emerald and Merucy.

Coming soon.