Chase uncovers a deadly conspiracy at an underground train disaster, Dean and Lara get an unexpected shock while searching for a man lost in subway tunnels, and Vince makes a startling confession while helping a suicidal man.

After receiving a panicked call from a man lost in a foggy ravine, Rescue are flying blind as they try to reach him. Meanwhile, Chase, Jordan and Heidi struggle to find Katie, and the LifeBlood chopper tasked with helping them is useless.

Called to a high-rise office to rescue a general manager and his assistant when their late-night tryst goes horribly wrong, Rescue are shocked to discover the real reason for the GM's heart attack.

When a light plane strays into city airspace and can't be contacted, Rescue is dispatched to trail it in the event of an emergency.

When a truck crashes into a service station, everyone is stretched to the limit dealing with multiple traumas.