Updated

Sunday, Feb. 27 at 9 p.m and 12 a.m. ET
Hosted by Greg Palkot

The U.S. Marine's India Company was the "tip of the spear" in the Battle of Fallujah — the first to charge into the terror-infested city.

Greg Palkot followed these American heroes through their week in hell — seven days and nights of urban combat. Of the 158 Marines in India Company, three were tragically killed and 25 wounded.

These young Marines make up a real modern-day Band of Brothers (search). We watch this pivotal battle through their eyes...

The mission starts smoothly, but quickly hits a deadly streak of bad luck. In the end, the mission is a success and a houseful of terrorists is wiped out in a bloody seven-hour firefight.

We'll bring you these Americans' stories — both tragic and triumphant — starting with their commanding officer, Captain Brian Chontosh (search), a native of Rochester, N.Y. who has a wife and young son back at home.

Chontosh is already a decorated war hero. He won the Navy Cross in Operation Iraqi Freedom (search) for single-handedly taking out multiple enemy fighters after he was pinned down in a ditch. His heroics were so impressive that a computer software company has made a videogame about him.

Before the end of our hour, Chontosh is once again faced with a moment of grave peril: While clearing an insurgent safe house, he comes face-to-face with five heavily armed terrorists. It's another story Chontosh lives to tell, but some of his men are not as fortunate.

The KIA include 23-year-old Lance Corporal Shane Kielion (search). He was shot by a sniper hours after his wife — back home in Nebraska — gave birth to their first child, a son she named Shane Kielion Jr.

Also killed — 24-year-old Lieutenant J.P. Becksmith (search), a promising platoon commander. Becksmith graduated in 2003 from the Naval Academy, where he played wide receiver on the football team.

"The Battle of Fallujah" is another in an important series of investigative documentaries brought to you by the staff of the FOX News Channel. You don't want to miss it.