Watching 1. Deliveryman at the Wheel
Mira Shifuto's about to get married to a man she doesn't want to when she's suddenly whisked away by a deliveryman.
2. The Information Expert Says No
Ishiro still won't acknowledge Mira as a Boonboomger as the team has to deliver classified documents to a foreign ambassador.
3. The Driver Can't Be Stopped
Mira goes out on her first solo delivery while a clock-themed Hashiriyan tries to stop everything that moves.
4. Calling Out for a Hero
After saving a child from getting hit by a truck, Mira is arrested by Officer Akuse and brought in for questioning by the International Space Agency.
5. The Policeman Won't Be Broken
Jou wants to become a Boonboomger, but Taiya rejects him, saying he doesn't have what it takes just yet.
6. White and Black
Ishiro trails Jou, thinking his overly serious policeman persona might just be an act when a toilet-themed Hashiriyan starts forcing the truth out of people. Meanwhile, Taiya has to deal with a new foe.
7. The Supplier's Brakes
Boonboom has fallen in love. Mira, as a delivery person, decides to take Boonboom to the person he loves. Boonboom falls in love with someone he never expected...!? Meanwhile, Taiya gives something to Genba.
8. Reckless and Apart
Taiya reveals his real intentions to form the Boonboomgers, which is to participate in the "Big Bang Grand Prix", the biggest and most important race of the entire universe, while fighting the Hashiriyans was not in his original plans.
9. Deliverymen at the Wheel
Taiya is seriously wounded after his fight with Mad Rex and Shirabe informs the team that the ISA decided to have the Boonboomgers disbanded and their equipment confiscated.
10. A Merry Mission
Genba has his first solo delivery job for the ISA. Worried about him, Mira decides to tag along, when the Sanseater attack the duo.
11. What a Boy Wants
Taiya makes a special delivery to an old friend who inspired him to become a deliverer in the first place. Meanwhile, Cannonborg, another team captain arrives to assist the Sanseater in taking over Earth.
12. Bakuage Engine
Taiya runs into a certain familiar Engine and takes on the job delivering him to his partner.
13. Supplying Betrayal
The Boonboomgers are afflicted by a mysterious phenomena that leaves them apathetic, while Genba approaches Itasha of the Sanseater with unknown intentions. Meanwhile, Cannonborg completes his secret weapon to counter Boonboomger Robo.
14. Cool and Wild
After Genba having successfully activated BoonBoom Safari, Ishiro and Mira pay a visit to an aquarium looking for inspirations to activate BoonBoom Marine, when the Sanseater return with a fixed-up Boonboom Killer Robo, eager for a rematch.
15. Lock and Key
Jou finds a monster created by the Hashiryan who refuses to attack humans and befriends him, determined to protect his new friend from the enemy.
16. The Purple Cleanup
The Boonboomgers meet Sakito Homura, a mysterious man who possesses the same powers as them, able to transform into Bun Violet and whose intentions are unknown.
17. Bun and Byun
Sakito makes an offer to Taiya to join the team. Meanwhile, Sakito's partner Byun Diesel is an old acquaintance of Bundorio and wants to meet him again, but Boonboom refuses and the past between them is revealed.
18. Cleanup is Not Pleased
At the Hashiriyan's request, Sakito starts trying to get rid of the Boonboomgers! Taiya asks him, "Why did you abandon the earth?" But...!? Will Sakito turn out to be a friend or foe!?
19. The Milky Way and the Heavenly Way
On Tanabata day, everyone is having fun, but only Boonboom remembers his bad past with the word "Milky Way". Then, a new Guruma appears, and Taiya is in the biggest trouble ever...!?
20. Yesterday Once More
Mira's ex-boyfriend Norio unexpectedly reappears. And he is with the Hashiriyan for some reason!? Norio's "Wonderful Revenge Drama" begins in order to get his beloved Mira back from the Boonboomgers.
21. The Blazing Delivery
A series of unexplained fires have been burning down the town, and the people seem to be in trouble. Genba, who has become a "detective", deduces the cause.
22. The Blazing Ferociousness
Summer! Camping! Tent Grumer!? Tent Grumer interferes with children who are enjoying camping in the mountains. Then, Taiya and the others challenge the newly born "Boonboom Leon" to a battle!
23. The Blazing Bad Luck Baseball
A new monster has appeared on the ground! The Boonboomgers fight as usual...but for some reason, they decide to play a game of baseball. Boonboomger vs. Hashiriyan is a blazing hot battle, and "Boonboomger Robo 119", a Cho Bakugage Gattai robo, plays a big role in the battle!
24. The Song I Want to Deliver
The Boonboomgers came to the after-school daycare facility where Taiya used to attend. There, they learn about Taiya's first love. While they are having a good time talking about their sweet and sour memories, a new Grumer appears, and Taiya and Sakito are put to sleep by a mysterious attack...!?
25. Six Fireworks
Cannonborg is on his last legs, initiating a plan to destroy Earth from space.
26. The Universal Secret
Shirabe is to explain the Boonboomgers to the head of ISA. Meanwhile, Taiya and the others have to fight a familiar Grumer. What's more, something extraordinary happens...!? The 3rd LAP is about to begin.
27. The Choice is Not Sweet
A new powerful enemy has arrived, and Genba seems to have some history with him...
28. Rejecting the Light
The team is distraught after Genba left and Jou decides to work even harder to make up for it.
29. Spy and Family
Sakito and Byun help with Ichiro's spy job, while Taiya tells the others the story of how he and Ichiro met.
30. Reckless Driving is What I Do
The Sanseater try to make Mad Rex recover his memories.
31. A Grand Challenge
Mira works part-time on a curry restaurant she has loved since childhood. However, business is not as booming as it once was so the other Boonboomger decide to investigate.
32. A Hellish Train Game
Genba is defeated by Dissrace and rescued by Sakito when they run into a mysterious man on the railway tracks.
33. The Supplier Will Not Yield
Genba has a heart-to-heart with someone he least expects. The Boonboomger use a new invention to transform into a powered-up form to confront Mad Rex.
34. The Car That Transports Dreams
The Sanseater blame the Boonboomger for Mad Rex's death as Taiya surprises the team with a new Boonboom Car, the Champion Carrier.
35. The Green King
Taiya and the others are astonished upon discovering that Bundorio was once a Hashiriyan and worked with Wild Spindor.
36. The Road That Races Toward Your Dreams
Mira's childhood friend grows jealous of her as the Hashiriyan hatch a plan to send out two monsters at once.
37. A Pair of Spies
Ichirou bumps into a spy with whom he used to work with, while the others are called into action to deal with a camera monster.
38. The Oath of a Lackey
The Sanseater are greeted to the arrival of Wayway Yarucar, an elite member of the Yarucar race, as the Hashiriyan prepare for Spindor's arrival.
39. The Screaming Planet
As ISA is making suspicious moves, Baisu Maimi, a co-worker of Shirabe, returns to Japan. Meanwhile, the Boonboomger are getting wiped clean.
40. The Immeasurable Man
A boy who admires Bun Blue appears and asks to become his apprentice. However, Ishirou does not want any part of it, leaving the situation to Bun Black instead.
41. I Have Your Back
Spindor is given the offer of the Earth's soccer league being part of his own Big Bang Soccer league, which Sakito and Genba take issue with.
42. Presents on the Holy Night
Spindor is curious about Santa Claus and wants him kidnaped and brought before him.
43. A Hearty Steering Wheel
Ishirou has been out of contact with Taiya for days when he suspiciously reappears, while at the same time, a space pirate appears with something important to give to the Boonboomger.
44. The Deliveryman Who Can't Deliver
Distraught over having his fortune taken from him, Taiya heads out to find his mentor who is behind all this.
45. Enemies to the Earth
Taiya is devastated with Bundorio's apparent death and attempts to fix him up. Meanwhile, Dissrace returns and initiates a plan to turn the public opinion against the Boonboomgers but Sakito and Byun rise against him.
46. The Future In Our Hands
Society has turned on the Boonboomger, while Yaiyai Yarucar is turned into a Kurumaju with the power of all Kurumaju.
47. The Deliveryman is Not Alone
Mira is propositioned into a political marriage with Spindor as the team struggles with the fact that they may have lost.
48. You at the Wheel
The Boonboomger enter the final lap of their battle with the Hashiriyan.
8.5