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Episode guide

S4·E15 Mysterions

Episode
Season 4, Episode 15
Air Date
August 17, 2019
Runtime
11 minutes
Story Type
Core Character Arc
Core Aired August 17, 2019 11 min
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Synopsis

When Theodore discovers Alvin and Simon have a secret club, he promises not to tell anyone if they let him join.

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Frequently Asked Questions

When did Season 4 Episode 15 of Alvinnn!!! and The Chipmunks air?

Season 4, Episode 15 ('Mysterions') originally aired on August 17, 2019.

How long is Season 4 Episode 15 ('Mysterions')?

The runtime for this episode is approximately 11 minutes.

What happens in Alvinnn!!! and The Chipmunks Season 4 Episode 15?

When Theodore discovers Alvin and Simon have a secret club, he promises not to tell anyone if they let him join....

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