When the president awards Adam, Bree and Chase for their heroics, Leo feels left out and forms his own team. When Leo discovers he and one of his teammates have joint bionic abilities, he pushes her to the limit which causes her to lose her eyesight. Racked with guilt, he moves back to Mission Creek but is forced to regain his courage when his family is put in extreme danger.

Everyone is shocked when Douglas introduces a fourth bionic sibling named Daniel who's been living a normal life with an adopted family.