The Walking Dead - Series & Repeat Question

[Tillyboo]

Bugger, I think I have missed the latest series. The last episode I watched was where the walkers all came out of the barn & got shot & I thought that was the end of Series 2 ?

Help, I'm confused.
Where can I watch the latest episodes online ?
Thanks

that was the first half of season 2....you're in for a treat
dunno where you can watch it online though. You tube?