A tunnel collapse accident has occurred! Kota Kitami rushes to the scene and finds out that the doctor carrying a heart meant for a transplant is buried in the rubble. He tries to rescue him, but another collapse occurs. Still, Kitami tries to rush alongside Senju Mikio and Kuramae Natsume. On the other hand, the female patient awaiting operation by Takanawa Chiaki is approaching the time limit of her life. All member use their courage to challenge the “relay of life”!