If you weren't already tipped off by actress Hayden Panettiere's absence from the cast and repeated mentions of a devastating terrorist attack on Odessa, Texas, the latest promo spot for NBC's "Heroes Reborn" lays out all out there: the seemingly unkillable cheerleader Claire Bennet is indeed dead.

"My daughter died on that day," Jack Coleman's HRG says in the teaser. "You don't just forget a day like that."

Despite that downbeat revelation, the promo is surprisingly hopeful, stating "the world still needs heroes."

Premiering Thursday with a two-hour event, "Heroes Reborn" also stars franchise veterans Masi Oka, Greg Grunberg, Sendhil Ramamurthy, Jimmy Jean-Louis and Cristine Rose, joined by a cast of newcomers that includes Zachary Levi, Kiki Sukezane, Robbie Kay, Danika Yarosh, Judith Shekoni, Ryan Guzman, Henry Zebrowski, Gatlin Green, Dylan Bruce, Francesca Eastwood and Nazneen Contractor.