Sam & Mark's Big Friday Wind-Up Nobody's Safe From Being Pranked By Sam & Mark!

Sam Nixon and Mark Rhodes messing about.

Oops! We can't load the video...

To view this content you must enable JavaScript in your browser and have the latest Flash plug-in installed. Please ask an adult for help if you cannot load the video.

Explore CBBC

with your BBC iD, or Register

CBeebies Bitesize Primary Stay Safe Help