A 7-year-old from Sacramento was the unlikely savior of a 3-year-old toddler who would have certainly drowned without help.

Last week 7-year-old Massiah Browne went down to enjoy the pool at the apartment complex where he lives when he noticed out of the ordinary.

"I was just playing in the pool and then I saw a boy at the bottom of the pool," Massiah, a second-grade student, told "Good Morning America." "And I went to go get him."

Swimming down into 6 feet of water, he grabbed the arm of a 3-year-old toddler whose eyes and mouth were open, and managed to pull him to the surface, where a relative of Massiah's, 9-year-old Savannah, helped them both out onto solid ground.

Adults who had caught wind of what was happening had called 911 and raced down to help. According to ABC, Savannah's mom performed CPR on the child who was helped to breathe again by the same Fire and Rescue arrived.

"The child was transported in critical condition with advanced life support efforts provided by Sacramento firefighters," a spokesperson for Sacramento Fire Department said.

Massiah's father Marcus, an Olympic boxer who represented the United States at the 2012 Olympics in London, said his son loves the water and swims like "a fish," but that despite the surprise, it really typed who Massiah is.

"He's super empathetic so for him to do something like that, I mean, it's really nothing out of the norm it's just crazy that he's 7-years-old and he's doing something like that."

WATCH Fox report on the story and hear from the family… 

CELEBRATE This Kid Hero Who Acted Before Anyone Else…