It's been five years since we've last seen people with super powers on NBC's drama "Heroes," but they will once again be called upon to save the world when "Heroes Reborn," premieres Thursday, Sept 24. New heroes will team with old ones in a fight for survival amongst themselves and humanity. Before the heroes return, here's what you should kno about the reboot miniseries:

1. The World Knows About People With Powers - When the original "Heroes" series came to an end, the final scene was Claire Bennet (Hayden Panettiere) jumping off the top of a building while many looked on, including news cameras. Her superpower was that she can can always heal no matter how severe the injury. People saw her heal after the jump and this exposed people with abilities to the world, which is the world that exists on "Heroes Reborn." People still try to hide their powers, but it is no longer a secret that people with super abilities are out there.

2. Heroes Are Called "Evos" - People with these superpowers are referred to as "Evos." "Evos" stands for evolved humans.

3. Old Heroes Will Return - Fans of the original show will be happy to know that there will be some familiar faces making their way onto the show for the reboot. Noah Bennet (Jack Coleman) will be back on the show as a regular, while there will be appearances by Matt Parkman (Greg Grunberg), Hiro Nakamura (Masi Oka), Mohinder Suresh (Sendhil Ramamurthy), The Haitian (Jimmy Jean-Louis) and more.

4. Claire Bennet Is Dead - A key part of the original show's plot was "Save the cheerleader, save the world." Unfortunately, the cheerleader won't be saved on "Heroes Reborn," as Hayden Panettiere's character Claire is supposedly dead following a terrorist attack in Odessa, Texas. Claire was always able to heal herself, so it be interesting to see if she really is dead and if so what made her power not work? The show will pick up five years after she revealed to the world she had powers.

5. Reboot Is A Miniseries - "Heroes Reborn" creator Tim Kring told The Hollywood Reporter there will be a beginning, middle and an end to "Heroes Reborn." "We’re making a contract with the audience that we’re actually going to do that. There’s no talk of anything to come after this," he dished. The miniseries will run for 13 episodes.

6. New Installment Will Be "Bloodier" - Newcomer Zachary Levi, who will play a hero hunter named Luke Collins, told Entertainment Weekly the show will be bloodier, which will partly be due to his character and wife, Joanne Collins (Judith Shekoni). The two will experience the loss of their 9-year-old son, which they will blame on Evos.

"We believe it to be the fault of people with abilities and so we want to go and take care of those people and rid the plane of them because that’s the right thing to do, we believe. And then there’s a lot of blood on our hands," Levi dished.

7.  New Heroes - While some old heroes will be returning, the show will mostly be made up of brand new heroes. A few of the new heroes include Tommy (Robbie Kay), who has the ability to make things disappear, Miko (Kiki Sukezane), and a different kind of here in former solider Carlos (Ryan Guzman). There's also Malina (Danika Yarosh), who could be destined for greatness.

The two-hour premiere of "Heroes Reborn" airs Thursday, Sept. 24 on NBC at 8 p.m. EDT