Watch "Under the Dome" season 2 premiere live stream online free here tonight! "Heads Will Roll" will feature two deaths of major characters as well as a cameo by original author Stephen King. Find out where to watch the "Under the Dome" season 2 premiere live stream online free here, titled "Heads Will Roll."

"Under the Dome" season 2 returns to CBS tonight, June 30. If you can't make it to a TV by 10pm EST to catch "Heads Will Roll," click here to watch online via a free live stream!

If that doesn't work, CBS also offers episodes on their website to watch online the morning after an episode airs.

The episode synopsis reads: "Barbie's fate lies in Big Jim's hands, and the Dome presents a new threat when it becomes magnetized. Meanwhile, Julia seeks out the help of a stranger to save the life of a mysterious girl who may hold clues to origin of the Dome, on the second season premiere of UNDER THE DOME, Monday, June 30 (10:00-11:00 PM, ET/PT) on the CBS Television Network. The premiere episode was written by bestselling author and executive producer Stephen King, who also makes a cameo appearance, and was filmed on location in Wilmington, N.C. Eddie Cahill and Karla Crome join the cast as series regulars."

"Under the Dome" season 2 will premiere with a bang - two major deaths are coming, as well as a cameo by Stephen King!

According to E! News, "two major deaths" will occur in the premiere.

"No one is safe in this town," executive producer Brian K. Vaughan teased in a spoiler video.

Executive producer Neal Baer told USA Today that King will appear in "Heads Will Roll."

"It was fantastic to work directly with Stephen. He's been a real hero of mine and now I get to work with him," Baer said.

In the cameo, Stephen King, who has made brief appearances in other adapted works, "is just a citizen of Chester's Mill for at least the moment."