Transcript for Kidnapping attempt botched by a 12-year-old
Now to the bizarre scene caught on camera at a family restaurant. A grandmother and three children approached by a stranger, apparently trying to grab one of the children, a 2-year-old. But the 12-year-old sibling saving the day. Here's ABC's Marci Gonzalez. Reporter: Tonight, this 2-year-old boy is home safe after his sister bravely stopped this attempted kidnapping. She was saying that my brother was her baby and I was just yelling back at her saying, "That's not her baby, that's my brother." Reporter: 12-year-old Makayla Phillips says she, her two siblings and their grandmother were eating at this restaurant in Oklahoma when a woman they didn't know approached the youngest two kids. She walked up to them and she gave both of them a kiss. And my grandma, she thought it was weird and not right, so she tried to move us to a different table. Reporter: Moments later, this surveillance video obtained by police in their investigation shows the woman grab the 2-year-old. She picked him up and she took one step but I grabbed him back from her and yelled at her and I said, "Don't touch my brother." Reporter: Makayla's actions, drawing quick attention, leading restaurant employees to force the woman to leave. Especially in a public place where there are so many eyewnesses, anyone grabbing my child, even if it was just for a split second, it's terrible. I think the worst. What could have happened, what would have happened if she wasn't there, it's terrible. Reporter: Police say they believe they know who that suspected attempted kidnapper is, but tonight, no arrests have been made. Whit? That was a brave big sister. Marci, thank you.
This transcript has been automatically generated and may not be 100% accurate.