Yep, this story is almost three years old. I'm just reposting it for more people to see because the boards they were originally posted on are closed now. 

And yes, Lego Movie and Ninjago are two themes that this story draws much inspiration from. You're going to see a lot more, though.

Okay, forget the March 9th thing. Let's try it this way

Season 1, Episode 1: "The Ruler of Bricksburg" (Part One)

Finn and his sister, Emma, were sitting in their family’s basement, next to a large table completely covered by a display of an impressive brick-built metropolitan area. This city, known as Bricksburg, was home to many small figures, including Finn's favorites: Emmet, Wyldstyle, and--
"Krog!" Emma shouted, placing a brick-built creature her family had bought her from the store onto the display. She made growling noises as she moved it around.
"No, not Krog! Keep your dumb Mixels in your corner," Finn said. He was, of course, referring to the corner of the room decorated in bright, flowery colors in which Emma's old Duplo sets, which she had outgrown years ago, were placed. It maintained an aesthetic of wild and wacky a younger Finn would have loved, one that did not fit with the orderly and strictly metropolitan one he now preferred.
"Why are you like this?" Emma asked her brother. "What happened to you that you don't like someone having fun with their toys?"
"You're invading my personal bubble." Finn's voice carried a tone of indifference that felt like a sharp pain in Emma's heart.
"You remember what Dad said? About sharing? About letting me play down here?" Emma tried not to sound too desperate, but she could barely contain her feelings. She knew the toys weren't worth getting very upset over, but she'd began to feel isolated from her brother, which was worth more effort to her than throwing a temper tantrum over plastic bricks, something was sure would make things even worse for her relationship with her brother.
“Oh yeah, I do. After I had to convince him to let me, kind of hoping it would just be me. And I'm letting you play down here. In your own corner.”
That was the breaking point. Emma knew whatever was happening with her brother had been festering, and it was only going to get worse unless she did something to stop it. But what? What could she do without making it worse? Without causing Finn to lash out even more at her?
“Finn, please. Whatever it is that's going on, please tell me.” Emma knew within second that she just bore witness to Finn’s breaking point.
“What makes you think something's wrong?” he snapped.
“I don't know, you just seem distant. You've seemed that way for a while and I don't want whatever it is that's happening to you to push us away from each other,” Emma said.
“Well, nothing's wrong. Don't instigate,” Finn answered. He sounded bitter.
“I'm not instigating, I'm just asking!” Emma said. “Why are you so upset? What happened to you to make you hate fun? To make you hate me?” She quickly regretted asking the first question, hoping that perhaps the last two would be the only ones he remembered, and that they might get her the real answer she was looking for. Especially the last one.
Instead of answering any of those questions, however, Finn turned around quickly and moved his arm towards Emma, sending her flying back into a wall by the corner. Whatever had happened to her brother, Emma knew, it was much bigger than could be explained.
Never before had there been such a vast oversimplification of the facts. And never before had the facts been so dire.
 

Okay, so that last story... I posted it twice by accident. The first one is the official one. The other two should be gone soon, hopefully.

Have I done it right? The first season 1, ep 1 was just both of those later posts combined and you just wanted that one right?