A young girl is kidnapped, a building collapses, a loved one is lost, and Scott Roberts is left with extraordinary abilities, powers he uses to ensure that such a tragedy never happens again. As a private detective, and as the costumed defender, Darkmask, he has teamed with the Sonic Sentinel, Sonarr, to protect the people of their city and pursue the criminals who prey upon them. But a new threat looms as a string of robberies poses an unexpected challenge: the possibility of a foe who also possesses extra-human skills. The menace grows as an enemy from Scott's past resurfaces, and a mysterious woman seems to be manipulating these events in a plan that could endanger the city itself. With the help of their allies, the heroes must solve the mysteries facing them before the city's time runs out...