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Where to watch:
Disney+

3Hz (2021)

3 seasons 39 episodes 23 min Kids and Mystery

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7.0

What if by listening to the past, you could save the future?

Synopsis

After Felix' walkman gets fixed with clock parts, he is able to hear the past with it. And he slowly finds out his mom's death wasn't just caused by a normal disease. With help from his friends he starts to investigate and discovers the devastating reason for his mom's death.

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Questions about the series 3Hz

What is 3Hz about?

3Hz: After Felix' walkman gets fixed with clock parts, he is able to hear the past with it. And he slowly finds out his mom's death wasn't just caused by a normal disease. With help from his friends he starts to investigate and discovers the devastating reason for his mom's death.

How many seasons does 3Hz have?

3Hz has 3 seasons, with 39 episodes in total.

Is 3Hz still running?

3Hz is still running, with new episodes expected.

How long is each episode of 3Hz?

Each episode of 3Hz runs about 23 minutes.

Where can I watch 3Hz?

3Hz is available on Disney+. Availability changes often.

Who stars in 3Hz?

The cast of 3Hz includes Junes Callaert, Cécile Enthoven, Arthur Hermans, Maja Azila and Stan Van Samang.

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Page updated on 09/19/2026.