You will get the following:
The Guardians of Middle Earth
Company of Dwarves DLC
The Defender Bundle DLC
The Enchanter Bundle DLC
The Striker Bundle DLC
The Tactician Bundle DLC
The Warrior Bundle DLC
Smaug's Treasure DLC
The also have a Painkiller Bundle on sale (without DLC) for $4.99 US:
http://www.bundlestars.com/all-bundles/painkiller-bundle/
If you want the DLCs go here as it is likely to be cheaper than buying them separately:
https://www.ozbargain.com.au/node/192338
Have fun and enjoy.
More like…. NO-BA, you know what I'm saying!?
The last thing I remember hearing about this game was the teaser trailer in like… What was it, like 2010? And now BAM here's the whole package for roughly 7 bucks. How the times change.