This is a sealed 2012 Fall Tin featuring Darkrai. There are 4 booster packs from the Black & White series.
Most youtube openings show the following packs.
2 Dragons Exalted
1 Black & White Base Set
1 Emerging Powers
OR
2 Plasma Storm
1 Plasma Freeze
1 Plasma Blast
Please do your own research as I cannot guarantee these packs are consistent.