NEED HELP (ASAP) FALL OF REACH ANIMATED SERIES

Games Halo 5: Guardians
#1

I bought the Halo 5 bundle:
http://www.xbox.com/en-ca/xbox-one/consoles/halo-5-guardians
and I don’t know how to launch the fall of reach
PLZ HELP ASAP
TY in advance

#2

Check your Xbox video app(s).