Two kids worked together using the lessons they learned in school to save a toddler's life.
Surveillance video shows the 3-year-old girl walking into the pool and trying to swim.
People don't even seem to notice when she goes under and nearly drowns.
The toddler spent 2 minutes and 9 seconds under the water and police say it could have been deadly.
Luckily, her 7-year-old cousin notices and pulls her out.
18-year-old Breanna Moseley saw what was happening. She then runs over and uses the CPR training she learned in school to save the little girl's life.
"Then I sat her up and held her, and kept her warm, and just comforted her until the ambulance and parents got there," she said.
Police say the child was swimming without adult supervision.
They want remind everyone - even if your kids are strong swimmers, don't let them swim alone.
VIDEO: Boy, teen rescue drowning toddler from Florida pool