Do Ki picks Cho Do-chul up with his taxi and disappears. Maria, a girl from an orphanage attempts to commit suicide from Han River Bridge, and Do Ki comes and saves her. He listens to her tragic story and decides to help her. Meanwhile, Ha Na tries to find where Cho Do-chul went to and realizes that there is something weird about the deluxe taxi he was in.

Do Ki manages to sneak into Ju Chan’s factory and even puts in an order for their food products. As Do Ki and his team carry out the investigation, they realize that Ju Chan did not only abused disabled workers but also committed frauds to embezzle more money. Meanwhile, Ha Na finds the deluxe taxi Cho Do Chul took but it was all burnt down.

Jung Min is a student who lives with his deaf mother. When he transfers to a new school, violence begins. Even though he asks for help from the school administrators and the police, there is no one to save him from this nightmare. Therefore, Do Ki disguises himself as a teacher to sneak into the school. Meanwhile, Ha Na receives an envelope anonymously and discovers a case.

No matter how hard Seung Tae tries to sabotage Do Ki, the Rainbow Deluxe Taxi crew manages to handle the situation with their fancy equipment. Furthermore, the three of them accidentally purchase drugs, and Do Ki stresses them out by threatening them. Therefore, Seung Tae decides to call someone for help. Meanwhile, Do Ki and Ha Na meet again at the meeting of Blue Bird members.

Do Ki wakes up from a nightmare after fainting on the street. Although everyone worries about his health, he still chooses to keep working without taking a break. Meanwhile, Ha Na visits Mr. Jang to discuss something. But before she does, she gets a chance to observe a victim-sharing session, which makes a small change in her heart.

Do Ki officially starts working at U data, the place where illegal videos are being shared. Once he figures out that the Strategic Planning Team is the core of the company, Do Ki does everything he can to get transferred there. Meanwhile, the abusive chairman Park Yang Jin wants to test Do Ki's overly zealous loyalty.

Jung Eun's suicide surfaces again, and her sister Go Eun gets a glimpse of what caused it all to happen. Sung Chul and Do Ki do what it takes to bring justice to those involved. Do Ki gets on to a lead and heads straight into the heart of where it all begins. Meanwhile, Ha Na asks Do Ki to be their informant.

Do Ki arrives at Park Yang Jin's vacation home. He starts to search for the data mine with the help of Go Eun, who finally returns. Meanwhile, Ha Na feels guilty that Jin Won is in danger and also heads to the vacation home to save him. Finally, U data's foundation begins to crumble as Do Ki reveals his identity to Chairman Park.

Ha Na finds Do Ki's employee identification card at Park Yang Jin's vacation home, or at least what's left of it after the explosion. She believes that someone stole her suspect and tried to cover up the evidence. Meanwhile, Kyung Gu loses money to a voice phishing scam. When he goes to report it to the police, he realizes that he is not the only victim.

Do Ki disguises himself as a burner phone peddler, Mr. Wang, from Harbin. Using his good looks, he tries to win the heart of the boss of the voice phishing ring, Madam Lim. However, things start to get complicated when Ha Na arrives on the scene of their undercover operation and Jin Eon's cover is blown.

Ha Na closes in on Do Ki and the Rainbow Transport team. She decides to search Sung Chul's house. Meanwhile, Do Ki meets the family of the victim in a murder case involving a missing body. When he finds out the suspect is Chairman Baek's man, he contemplates his next move. Just as Ha Na and Min Ho chase down the suspect, they walk straight into danger.

After Min Ho's death, Ha Na is determined to catch his killer. She succeeds in having Gu Young Tae arrested, as he is the lead suspect in this case. However, without any real evidence, the prosecution has no choice but to set him free. Ha Na goes to Do Ki, who has already been chasing Gu Young Tae, and asks for his help.

Do Ki finds the missing criminals while searching for Gu Young Tae. Ha Na asks Do Ki to hand over Gu Young Tae, but Do Ki plans an exchange to get the criminals back. Meanwhile, Sung Mi suggests to the criminals that they get their revenge on the Rainbow Transport team. The criminals each go looking for their own revenge.

The Rainbow Transport team faces off with Baek Sung Mi, Gu Seok Tae, and the criminals. Park Ju Chan rams a truck into the taxi that Jin Eon is driving, while Choi Min tries to film a video of Go Eun, just like he did with her sister Jung Eun. Do Ki decides that he can't stand by and watch his people get hurt anymore, and he sets out for revenge, burning with rage.

Sung Chul and Do Ki decide to disband Rainbow Transport and stop getting revenge. Do Ki tells Ha Na all about what they used to do. However, a man claiming to be the killer of Do Ki's mom suddenly appears and says that the man who was previously arrested for the crime was just lying. Do Ki, who takes on one last case, must decide how to proceed.

The notorious serial killer Oh Chul Young turns out to be the murderer who killed Do Ki's mother and Sung Chul's parents. Also, there is a man named Kim Chul Jin who had to serve 20 years in prison for a crime that Oh Chul Young committed. Despite Rainbow Transport's ups and downs, they decide to carry out their last revenge.

Plot of this episode is not specified yet. Please check back later for more update.

Plot of this episode is not specified yet. Please check back later for more update.

Plot of this episode is not specified yet. Please check back later for more update.

Plot of this episode is not specified yet. Please check back later for more update.

Plot of this episode is not specified yet. Please check back later for more update.

Plot of this episode is not specified yet. Please check back later for more update.

Plot of this episode is not specified yet. Please check back later for more update.

Plot of this episode is not specified yet. Please check back later for more update.

Plot of this episode is not specified yet. Please check back later for more update.

Plot of this episode is not specified yet. Please check back later for more update.

Plot of this episode is not specified yet. Please check back later for more update.

Plot of this episode is not specified yet. Please check back later for more update.

Plot of this episode is not specified yet. Please check back later for more update.

Plot of this episode is not specified yet. Please check back later for more update.

Plot of this episode is not specified yet. Please check back later for more update.

Plot of this episode is not specified yet. Please check back later for more update.