Synopsis by Mark Deming
This television series follows the adventures of four teenagers who in their spare time help to serve their community as volunteer emergency medical technicians (EMT's). Hank (Danso Gordon), the son of a successful surgeon, is eager to prove that he has talents of his own. Jamie (Christopher Ralph) is a boy with a checkered past who is under court order to perform community service, which he approaches with a certain reluctance, but also an awareness that this may be his last chance to turn his life around. Val (Reagan Pasternak) is a bright, ambitious girl who wants to be a doctor someday. And Tyler (Shawn Ashmore) uses a cheerful disposition and enthusiastic attitude to camouflage the fact that he doesn't get along with his family. As the four youngsters balance school and their responsibilities as EMT's, they also have to deal with the trials and tribulations of growing up, and Val has to contend with her cynical friend Caitie (Jackie Rosenbaum) and her overly ambitious little sister Brooke (Lauren Collins). In a Heartbeat premiered on the Disney Channel on August 26, 2000.