Cautiously hopeful when a witness comes forward with information about Anthony, Luke and Helen set off on their own to search for their son while Henry becomes obsessed about an item Anthony left behind.

Susan and Charles focus their investigation on Stephen Price – their main suspect in Anthony’s disappearance. Still driven to pursue his own investigation but confined to a hospital bed, Henry confides in Fred, Catherine’s patient.

Henry asks Fred for help in decoding the clues left by Anthony’s abductor. Luke and Helen still believe their son's disappearance is related to Henry's past. Susan makes an important discovery and issues an Amber Alert.

The police and the Sullivans race to find Anthony.