Digimon Adventure Tri. Part 3: Confession

Tai and his friends are haunted by the infection that resulted Meicoomon destroying Leomon. What could have caused it? When did it occur? Now, all of the Digimon are quarantined, in hopes that answers can be found and the infection can be stopped. Unfortunately, one of the quarantined Digimon is already showing symptoms. The adventure now evolves once again...