Three teams of gold prospectors take a gamble to strike it big, deep in the wild west of outback Australia.

Kang Tae Ju, a former neurosurgeon who now serves as a hospital director struggling to face a dangerous criminal in order to save his wife, who was kidnapped before their divorce.

A fun-loving rich chaebol gets entangled in an incident and joins a violent crime investigation team. By mobilizing his wealth and personal connections, the third-generation chaebol catches criminals beyond the reach of police.

Park ranger Anna Pigeon left city life after personal tragedy. Now she channels her pain into investigating crimes in national parks, determined to solve cases despite any obstacles.