- Written by Shogo MutoDirected by Kazuya Kamihoriuchi
Rescuing a family, while driving with a time bomb in order to clear your name...Just another day in the life of Ryuuga Banjo.
Sento: While trying to clear Banjou’s name, the BRILLIANT physicist Kiryu Sento was caught in a trap, learning more about Nabeshima in the process.
Ryuuga: To save Nabeshima’s family, me and Sawa headed to Seito on a smuggler's boat.
Sento: Meanwhile, the BRILLIANT physicist Kiryu Sento restored the Smash-transformed Nabeshima, only to be attacked by a mysterious monster, facing a life-or-death threat…
Ryuuga: Has the poison gotten too bad for you to talk? Leave it to me. And now, what’ll happen on Episode 4?!
After being poisoned, Sento is brought back to Nascita by Soichi, while Ryuga and Sawa make their way to Nabeshima's family in Seito. What could Faust have in mind by reclaiming Nabeshima's body again?
- Even Evil Has Loved Ones: Nabeshima's wife and daughter were living in relative peace in Seito, unaware of what he was doing in Touto, or of Faust.
- Race Against the Clock: Blood Stalk sends a coded message to Sento to deal with the Square Smash, telling him he has 3 hours left before something bad will happen.
- Suicide Attack: A modified Guardian, of the Action Bomb variety, is sent by Faust to attack Ryuga and Sawa. It manages to latch onto the van that the group was using to drive in Seito while they were making their way back to the smuggling boat. Luckily, they manage to jump out of the van in time for it to safely explode in the water, killing no one.
- Throwing Your Sword Always Works: Interestingly, not done by Sento himself but by Ryuga, which buys Sento enough time to transform into HawkGatling to finish off the gigantified Square Smash.
- Trauma-Induced Amnesia: Nabeshima has no memory of himself or his family after being recovered from the Square Smash, but apparently remembers part of the hideout where he was experimented on by Faust and that there is a Full Bottle panel on one of the walls.
- Wild Card: Blood Stalk's actions in this episode have been questionable to say the least. When questioned about it by Night Rogue, Stalk just says that he is the Game Maker and that it doesn't affect them in the long run.
- Wham Shot: It is established earlier in the episode that two of the Pandora's Box's panels removed themselves from the base artifact before the Skywall incident happened. The Full Bottle panel that was revealed in Episode 3 is actually one of those panels.
- Earlier, Sento questions Souchi about why he took him in and told him to become Build. While Souchi attempts to downplay things and tells Sento not to worry about things, we see a photo of one of the astronauts that brought back Pandora's Box (and might have opened it!)... and he looks like a duplicate of our familiar cafe owner.
