Police in Darien, Connecticut released the 911 call, and it shows a very calm 10-year-old making the call for help.
In true heroic fashion, he doesn't even take the credit.
"Go Tucker!" said Christina Stoops, Tucker's mother.
Tucker is 10 and Nina is 7, and mama's proud!
"Yeah, it's nice to see they listened and it's gone through," Stoops said.
The kids were cool under pressure when their 50-year-old babysitter collapsed and was unresponsive in a chair, Nina was first to notice and Tucker dialed 911.
"Hard time breathing," you hear Tucker say in the 911 call.
"Are her eyes open?" the 911 operator asked.
"Yes, no, yes, no!" Tucker said in the call.
"A lot of kids would have lost it, he maintained composure," said Sgt. Jeremiah Johnson, the 911 operator, "You can tell they were raised right. He was definitely polite."
"Is she breathing?" Sgt. Johnson asked.
"Yes but she sounds like she's going to barf," Tucker said in the call.
Christina Stoops told Eyewitness News that both of her kids are dyslexic so to parents of kids who are dyslexic out there, she says don't ever believe your kids have limits.
Also she was just running out the door, so she didn't have time to find a picture of her babysitter, but said that she is so relieved she is okay.
"Naida is a member of our family, has been with us 10 years since Tucker was a baby," Stoops said.
"Is she going to die?" Tucker asked in the 911 call.
"I'm not there, but it's good she's breathing," Sgt. Johnson said.
"Thanks so much, the officers are here!" Tucker said at the end of the call.
The kids still can't believe all the fuss being made over the fact that children were alert.
Their mother understandably didn't want them to talk to Eyewitness News on camera until she could be there with them.
She said that Tucker is being very humble about the whole ordeal.
"He's just like, 'Aw Mom, I didn't do anything, just did the right thing'," Stoops said.
The babysitter has since recovered and been released from the hospital after suffering from pulmonary edema.
The kids are receiving an award from the police on Thursday.