Halo 4 spartan ops episodes don't play

Iam not being able to watch the spartan ops episodes on my xbox in halo 4. can u please rectify it ASAP.

Have you tried reinstalling the content from Halo 4 Disc 2 and redownloading Spartan Ops Season 1 Part 2 from the XBL Marketplace?

Can you watch the episodes on Halo Waypoint?

What error message do you get, if any?

If not, what happens when you attempt to watch?