The trailer then delves into Batman recruiting the other eventual members of the League, including Cyborg, the Flash and Aquaman. We also finally get to see the team in action against Darkseid's minions.
A few newcomers make their first appearance as well, including Amber Heard's Mera and J.K. Simmons' Commissioner Gordon, along with some familiar faces like Amy Adams' Lois Lane.
The new clip came after it was announced earlier this week that there would be a trailer on Saturday.
Clear shots and short videos of League members like Batman and the Flash had been tweeted out earlier in anticipation.
The trailer builds on a previous clip that shows Bruce Wayne searching for heroes to unite against the impending arrival of a villain whom fans know is Darkseid. "A war is coming," Wayne has said, and he needs the "Justice League" to protect the world.
If you recall, Superman was killed at the end of "Dawn of Justice," but there's hope that he will return soon (remember the floating dirt).