Mallory's story: New school year and a new heart

Imagine suffering a series of 14 heart attacks at just 15 years old.  

Heart problems are nothing new to Mallory Mueller, who received a heart transplant as a toddler. 

Now the 10th grader once again has a second chance at life, after surviving a critical wait for a heart at Nebraska Medical Center.

KETV shares Mallory's fight to head back to school healthy and healing.