Stream anime episodes for free, you want to Watch Bakugan Gundalian Invaders Episode 17 English Dubbed online for free. Episode guide Bakugan Gundalian Invaders Episode 17 English Dubbed Battle For the Second Shield Shun successfully sneaks past the Gundalian guards into the second shield generator, but is ambushed by Lena and Kazarina. A battle quickly ensues and Lena is taken out. When Kazarina and Lumagrowl begin giving Shun too much trouble, Dan and Hawktor suddenly arrive to save the day! Dan and Shun switch back their bakugan and Shun heads to the generator while Dan holds off Kazarina. Shun reactivates the shield as Drago powers it up with the Element. Realizing what is happening, Airzel, Stoica and Kazarina quickly flee before being trapped within the shield.