Carrying on from Part 1, Part 2 is the series finale. All I can say is that is was greatcouldn't have been better, as this will probably lead on to yet another awesome Batman series of some sorts, which will be awesome if WB actually do another Batman series.
They escape the androids narrowly, and the Batman takes them to a secret hideout, which is the 3rd hideout from this series. His Batcave, then one near the sewers, and now this one (which has some more high tech stuff in then the sewers). Luckily for our heroes, the Batman prepared them with some weapons, that will weaken their android counterparts, Batman gets questioned why he had these, and he replies "As a precautionary measure", as Superman in The Batman/Superman Story did turn renegade (thanks to Luthor).
The androids with the Legions powers look all the same, but the Martian Manhunter android being dark green, Superman being blue, Hawkman being yellow, Green Lantern being green and Flash being red. It's not as action packed as some of the episodes from series 1 and 2, but it's one of my favourites in terms of storyline.
The way they take out the androids are clever, but the androids start to adapt with finding out their weaknesses. After defeating these they plan to end this once and for all, and return to Hugo Strange.
Hugo Strange wanted to have infinte knowledge, as he done his fair share, and so he got it, but it overrided his brain with too much information. When the Legion return with Robin and Batgirl, they find that the Joining are coming, from reading Hugo Stranges mind. They then all start to fight them off, but even the Joining came prepared with their own weapons to fight of our heroes. Superman and Green Lantern are fighting them in space, whilst Hawkman, Flash and Green Arrow take it to the streets to fend them off.
So Batman and Robin have to fend of the robot who gave Hugo Strange infinite knowledge. They do get battered a bit after the robot gaining a few of the superheroes powers from the android room, but they still manage to pull it off. The Martian Manhunter knows the only way to end the Joining is in Hugo's mind, so he reads his mind with the instructions, whilst he then controls Batgirl to programme them in. At the final moment, the Joining stop completely, falling from the sky into the sea, and Green Lantern throwing the mothership into the sun, which explodes. It ends with Batman standing in the Legion HQ, with Robin and Batgirl, Batgirl making an joke about her and Robin being the "teen division" of Justice League.
It's a great ending to a great series, that keeps on getting better and better. This is one of the must see episodes in the entire series, and hopefully WB will look at The Batmans success, with the only cartoon having 5 series.