Plot --> Out of Time

Plot: When one of his forgotten abilities suddenly manifests, Peter and Caitlin get thrown into a crisis situation, and learn first-hand just how deadly the mysterious virus striking people with abilities can be. Suresh, Matt, Nathan, Niki and Bob band together to fend off the "nightmare man's" attack. Despite Claire's best efforts to keep them apart, West learns that the man who kidnapped him as a child is her father. Meanwhile, in feudal Japan, Hiro and Kensei's legendary journey takes a dramatic, final turn. Source: NBC