Set in the fictional city of Newport, Japan (I partly grew up in Newport, Belgium ;p), in a future in which bacterial air pollution has become so severe that people must wear gas masks when outdoors (more about this later in the post), the series follows a police squadron that uses tanks.
Here is a shot of Leona and her boss in her little tank on the left, made from the scraps of her boss' tank which she wrecked ;p, and futuristic Newport on the right, Mushroom building and everything.
The first OVA was funny, action-packed and as usual in anime you barely know wtf is going on! (in a great way!) Without spoiling everything (barely), and after checking out this White Stripes Music vid set to some cool animation from the series, let's check out how we go through the stargate in this story:
Domnion Tank Police: 7 Nation Army AMV
At the end of the first OVA, Buaku and the girls come upon a place where Buaku is led by his consciousness after having dreams featuring this:
Up there, that gentle green sea... peace." Buaku