On Monday's new episode of Heroes...

• ... Matt continues his battle to Sylar's mental domination;
• ... Tracy struggles to control her ability;
• ... Samuel realizes the full potential of his;
• ... Mohinder returns.

We're as distressed about that final fact as anyone. But it's still worth viewing the official NBC promo for "Brother's Keeper" below:

[video url="http://www.tvfanatic.com/videos/brothers-keeper-promo/" title="Brother's Keeper Promo"] [/video]

We encourage fans to discuss these developments and more in our Heroes forum. Below, click on various photos for an early look at scenes from the episode.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.