The Dragonball Z movies can be confusing for fans obsessed with continuity too much. Trying your best, it is just impossible to fit them in somewhere between the events of the anime series. For this reason it is best to view them as "what if?" stories, and watching them from that point of view in this set we get two of the best "what if?" scenarios. In Super Android 13! it is: what if the leader of the Red Ribbon Army, Dr Gero, somehow cheated death to create a faction of androids even more powerful than androids 16, 17 and 18?
The Android Saga is arguably the best story arc of the whole Dragonball series. Seeing the Prince of All Saiyans, Vegeta finally transform into a Super Saiyan, as well as the introduction of his half human son Trunks, who came from an apocalyptic future destroyed by Androids 17 and 18 that looked like it came straight out of the Terminator films. Because of this saga's popularity with fans, it was a natural fit to have the Z fighters return for another battle with a new band of android killing machines.
In Bojack Unbound, the "what if?" is: what if an alien even stronger than Perfect Cell invaded the Earth? The film uses a martial arts tournament setting, a plot device often employed in the anime series. Fans will enjoy the bouts between Tien and Trunks, as well as Piccolo taking on Krillin. The film is also only second time we see teen Gohan use his Super Saiyan Two transformation.
While the two films could have benefited from more remastering for the Blu-ray release, the Funimation dub is far superior to the Pioneer releases of other Dragonball movies. Those older English dubs were so ridiculously bad they were good!
DRAGON BALL Z MOVIE COLLECTION FOUR: SUPER ANDROID 13!/BOJACK UNBOUND / CERT: PG / DIRECTOR: DAISUKE NISHIO, YOSHIRO UEDA / STARRING: MASAKO NOZAWA, TOSHIO FURUKAWA, MAYUMI TANAKA / RELEASE DATE: OUT NOW