To increase the quality of medical service, it have been added a "doctor heli', which to doctor came by helicopter to the emergency field and give necessary first aid, then bring the patience back to hospital to have more complete medical check. Sound cool, huh? Not many in hospital you could find doctor-heli service.
But, with helicopter, you only could bring small bed, oxygen tube, and some in little amount of first aid (in aid box). The helicopter isn't big as you could put much of patience to bring them back. The pilot and co-pilot is needed, nurse and two doctors, included one patience in small bed. How would have you done if there any unexpected react from the injured one? Yet you still in flight? Wanna jump out?!
No matter how great your theory on medical, ride doctor-heli isn't same like you being doctor. The pressure to help the patience with only first-aid, it's possible that the condition get more worst! Imagine to help someone that stuck ed in machine, remember there's no high-tech tools that help him out of being stuck ed. Ok,... what should you do? Amputation. The right decisions, BUT how about of in process you're out of blood? Are you enough brave to cut off arms (surgery) in not synthetic place? Without enough light? That's what challenges are!
Aizawa-sensei, the main character in this drama. His character are smart, brave, cool and good-looking guy. He's the only fellow doctor that accepted to ride doctor-heli among the three others. But his golden time keep going. He had made mistake and being replaced by other. Even so, he still do his best to ride doctor heli.
Shiraishi-sensei, she's the daughter of great professor. She do wrote any information she get from what she have checked. Yet, look like she afraid of seeing enormous blood. Being replaced, then make thing more complicated by made her senior, Kuroda-sensei in danger situation, which effect to being enable to do surgery. After several inner struggle, ever trying to stop being doctor. He get back her spirit of helping souls.
Hiyama-sensei, she look like just normal doctor, her skill not really perfect. At first time ride doctor-heli, the victim isn't just one, she resist to take care the patience, Mitsui-sensei upset and ask the hospital to send Aizawa-sensei. Hiyama-sensei just stand can't do anything and again not trusted to be doctor heli. Her role most to support the patience to keep doing their medical threat, included how she persuade (read: force) patience's family to came and check their family member.
The last fellow is Fujikawa-sensei, he never get 'first-time' like the other three. Kuroda-sensei just find out that Fujikawa-sensei have asthma. so he told Fujikawa-sensei to stop dreaming ride doctor-heli. Because good-physical is one of requirements of doctor-heli.
In the last episode, there large-scale accident, which the victims are more than a houndred. After convincing Kuroda-sensei, Fujikawa-sensei finaly ride to doctor-heli.
They're doctor, and also people. Each of character have their own problems.
Aizawa-sensei with his lost-memory grandma,
Shiraishi-sensei, with her weak-mental being doctor,
Hiyama-sensei with her skill in medical world,
Fujikawa-sensei, with his asthma

:(( :((
Kuroda-sensei with his long-distance family.
Morimoto-sensei with his girlfriend-seach.
Saejima-san with her near-to-death boyfriend.
Mitsui-sensei with her past as mother as well as doctor.
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This drama included surgery scene, amputation process, and medical words.
Is would be best if you have wrote some of unknown words, then search for it's meaning.
For example, (the only one I remember ^^; ) :
RCC
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Note: I even don't understand why this relate to 'code blue'. what exactly code blue mean?