TODAY | March 30, 2014
>> power of family and of the internet, too. 66 years ago two sisters were separated, left at ar orphanage and adopted by different parents but never lost hope that one day they might reunite. that special day finally happened, and stephanie gosk has their story.
>> hey, annie. where are you? we'll see you in a few. i love you. bye.
>> reporter: karen similar simpkin is ready to see her sister for the first time in 66 years.
>> my mother had saying, never forget you didn't grow under my heart. you grew in it.
>> reporter: her heart was never completely full. her parents abandoned her and other siblings in 1948 .
>> this is a year after they got rid of all of us. i can't fathom giving up churn.
>> reporter: while karen wanted tore nothing --
>> i felt like i wanted, i needed to find out what happened to them.
>> reporter: she started searching online and didn't stop until she found what she was looking for.
>> oh, my god. i can't believe this.
>> reporter: karen would find out her older sister ann had been looking for her as well for nearly 30 years.
>> you've grown up.
>> i remembered having a baby sister and i remember crying for her.
>> reporter: until one day the search came to an end.
>> there was a light blinking on the answering machine and i reached over and hit the button. it said, i think you're my sister. and knew instantly that we had finally found her.
>> reporter: sisters who haven't seen each other in decades, but share a bond only siblings could understand.
>> she was only 3 months old. ever she called and we've been talking it's like we've never been apart.
>> reporter: and thankfully will never have to be again. for "today," stephanie gosk, nbc news.
>> i love you.
>> i love you, too.
>> what a story.