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Watch Hart to Hart: Harts in High Season online — it may be available on legal streaming platforms such as YouTube, Netflix, Prime Video, Hulu, Disney+, and others.

When his old enemy Elliot Manning goes missing in Australia, Jonathan Hart is suspected by the Australian police of having done away with him. With help from his wife, Jonathan turns detective in order to prove himself innocent. The couple go through a few adventures while trying to clear Jonathan's name.