Universal has uploaded a second trailer for the disaster actioner Skyscraper [SKYSC]. Dwayne Johnson [TROCK] stars as a veteran and former FBI Hostage Rescue Team leader who now assesses building security. While on assignment in the world's tallest building in China, he's framed for setting the tower on fire. He must find the real terrorists and save his family trapped inside the building. Written and directed by Rawson Marshall Thurber, Skyscraper opens in theaters on July 13th.