Transcript for As COVID-19 battered the US, some Americans became heroes
Finally tonight, honoring some of the heroes of 2020. So many going above and beyond during a year like no other. Here's ABC's robin Roberts. What they're asking for us to do is, like, beyond god's work. I don't even know how it's going to be possible, how we're going to do this. We are running low on a lot of supplies. I'm about ready to walk into the E.D. I heard our volume is just exploding. Reporter: These are our front line workers turned American heroes, on the ground, relentless, from the moment the covid-19 pandemic swept the nation. All across the country, health care workers going above and beyond the call of duty. Erin Courtway, leaving her life and family behind in Arkansas to help aid New York City. These are the sickest patients I've ever taken care of. Reporter: In Houston, Dr. Joseph Varon, after what he says working more than 250 days straight, taking a moment to embrace a patient on Thanksgiving day. He was very sad, because he's in am where he knows nobody. He was very emotional. Reporter: Despite all the challenges, health care workers bringing uplift in cheers, signs and music. Reporter: Like nurse Lori Marie Kay, gracing her team with a sweet serenade. Reporter: And nothing but love for teachers all across America. Off we go. Awesome job. Give yourselves a thumb's up. Go ahead. The reason why I transformed my kitchen into a chemistry lab is for the love of my students. Reporter: Proving with teachers like these, the future is bright. And robin Roberts will have much more in her two-hour special, "The year: 2020" right here on ABC. Thank you so much for joining us. I'm Tom llamas. I hope to see you right back here tomorrow. Good night.
This transcript has been automatically generated and may not be 100% accurate.