Currently available on 1 streaming service.

Streaming, rent, or buy Au pays des têtes à claques – Season 3:

You are able to buy "Knuckleheads - Season 3" on Apple TV as download.

Where can I watch Knuckleheads for free?

There are no options to watch Knuckleheads for free online today in Canada. You can select 'Free' and hit the notification bell to be notified when season is available to watch for free on streaming services and TV.