The begins before the events of the Watchmen. The Film starts with Jon and Adrian buillding a portal to travel other dimensions to find out if another universe exist out there. The Watchmen set up a presentation for the government. When Jon and Adrian finished it they activated it. There was a malfunction in the machine. Then it exploded, Jon and Drian were trying search for what happened. Suddenly Adrian got punched by a blue and red figure. Adrian looked at him and said "Who are you?". "I'm Thunderbolt" he answered. Then five figures appeared behind him. The five figures were The Peacemaker,Nightblade,Blue Beetle,The Question and Captain Atom. " And we are the Sentinels of Liberty".Captain Atom said. More comind soon.