So, here is the 1st Chapter. (Which is basically just the end of the WPWT episode.)
"NYA!" Past Kai cried as he watched in horror as his very own sister began to disappear in front of his very eyes. "What's happening!?" Jay looked over to the two and was about to ask why his girlfriend was disappearing when a blinding flash of bright white light silenced him. When he opened his eyes, his mind subconsciously locked the memory away for later. Right now it was just happy to be home. He spoke.
"Did we just... ugh..."
"Return to the future?" Kai finished for him.
"This feels familiar, but... weren't we training Lloyd?" Cole asked.
"The past was altered and there is no Green Ninja!" Zane realized. The ninja hung their heads in shame, their mission a failure until they heard the all too familiar footsteps of the always late chosen one. The looked up. Could it be?
"Sorry I'm late, guys. Are we ready to get training?" Lloyd asked.
Kai gasped. "You're still here!" The five hugged.
"Uh, yeah. Why wouldn't I be?" Lloyd asked, confused.
And so, the ninja spelled out the tale of the Mega-Weapon, the time travel, two Garmadons, all while snacking on a delicious watermelon. They began putting up theories about how it was possible for Lloyd to be older, or for the ninja to go back in the first place if the weapon never existed. Zane eventually started sparking because of all the illogical theories, and they disbanded for the night.
And none of them realizing that Nya wasn't there.
Sorry it was so short, new chapters will hopefully be longer.