NEW YORK (CBSNewYork) — On Sunday, more than 25,000 will walk and run from Brooklyn through the Brooklyn-Battery Tunnel all the way to the World Trade Center.

It’s all to remember and honor the first responders who made the ultimate sacrifice in the Sept. 11 terror attacks.

READ MORE: Remote Option Returning To NYC Schools As Omicron Continues To Fuel Nationwide Spike In COVID Cases

LINK: More on Tunnel to Towers Run

The Tunnel to Towers 5K retraces the steps of fallen firefighter Stephen Siller, who ran to Ground Zero, but never returned home.

Stephen Siller died in the Sept. 11 terror attacks (Credit: CBS 2)

Stephen Siller died in the Sept. 11 terror attacks (Credit: CBS 2)

READ MORE: Mayor Adams Says Reducing Crime In New York City A Priority At Martin Luther King Jr. Day Celebration

CBS 2’s Andrea Grymes sat down with Siller’s brothers, George and Russ Siller, to talk about the event.

Click the video player at the top to watch the full interview.

CBS 2 will have special coverage of the Tunnel to Towers 5K beginning Sunday at 10:30 a.m.

You May Also Be Interested In These Stories:

MORE NEWS: Sen. Gillibrand, Rep. Torres Propose Federal Heat Sensor Requirement In Wake Of Deadly Bronx High-Rise Fire

[display-posts category=”news” wrapper=”ul” posts_per_page=”4″]