Mole Hunt Arc

Note that the arc title is conjectural and following sub-headings are fan-made, used to better organize the story.

The Mole Hunt Arc is the fourteenth and ongoing story arc in SPY x FAMILY.

The lives of Westalian agents in Ostania are put at risk after a mysterious mole steals classified documents, one of which includes operations in Ostania like Operation Strix. The intelligence services of the two countries begin the pursuit of the thief and the stolen files in the hope of getting to them first.

Yor's Gripe
At Berlint City Hall, Camilla and Millie get stuck working overtime. Luckily for them, Yor offers her help, and Sharon gets dragged along into helping as well. After finishing all their work, Camilla, Millie, and Sharon agree to go out for dinner, and Sharon invites Yor to join them. Yor agrees but quickly gets drunk, and the ladies discover a new side of Yor, which they find surprisingly hilarious and adorable. Camilla and Millie grill Yor for any gripes she has with Loid, but Yor cannot think of any, which they all find hard to believe. After the ladies share the gripes they have with their partners, Yor tries to fit in to appear normal, even attempting to drunkenly leave the restaurant with a butter knife to prove it. The girls accept Yor has a "lovey-dovey" marriage and tease her about getting intimate with Loid. They then tell Yor that giving a welcome home kiss is normal for couples, which shocks her. When she returns home, Yor faints at the thought of giving Loid a welcome home kiss. After Loid catches her from falling, Yor ends up crashing around the house, to Loid's bewilderment.

The next day, Yor wakes up and worries that she made a fool of herself in front of Loid the night before. Meanwhile, Loid prepares Anya for her trip to the zoo with Becky. After Anya leaves with Becky and Martha, Loid sees Yor creeping into the living room. Loid remarks to Yor about how she overslept and worries to himself that she is dissatisfied with him after knowing how heavily she drank. On the other hand, Yor believes Loid is griping about her oversleeping and concludes that she should have a gripe too. Loid asks Yor to tell him any concerns she has about their life together, which only furthers her misunderstanding. Yor cannot think of anything and tries to be vague by saying that she has problems with everything, which astounds Loid.

Yor declares to Loid that she is dissatisfied with their life together. As she says this, a recovered Yuri bursts in the house for an impromptu hangout and is shocked by what he hears. From this point on, Loid struggles to quickly resolve this problem with Yor as soon as possible, but Yor wants to have a problem, and all the while Yuri antagonizes Loid. The discussion is interrupted after Loid gets an emergency call - and secret emergency code - from the hospital and promptly leaves. Believing that Loid could be having an affair, Yuri attempts to stalk him with Yor but is forced to withdraw after receiving an order for an emergency summons from his superior. After Yor follows Loid to the hospital, she finally sobers up and heads home.

At the hospital, Fiona tells Loid that they have an extreme situation: a mole from WISE HQ in Westalis has stolen important, top-secret files, one of which was a coded map regarding agents' operational activities in Ostania, including Operation Strix. At the same time, Yuri and other SSS agents are ordered by their boss to ensure the mole's security upon crossing the border.

The Chase for the Mole
The mole is revealed to be Winston Wheeler, a talented spy whose abilities are praised by Twilight himself. The WISE agents make their way to Wheeler's supposed destination, Shellbury in northwest Ostania. Fiona is worried about the risk of this mission and suggests pulling the plug on every operation in Ostania, then restarting with a clean slate. Loid refuses, reasoning that in Operation Strix's case, it would take years to get as close to Donovan Desmond again as they are now. Agents from both the SSS and WISE arrive at Shellbury, and Loid is tasked with keeping the SSS from getting Winston. At the same time, Winston receives orders to meet at the city's hotel. Loid, disguised as Winston, scouts the area from afar and spots WISE agents in disguise waiting for the real Winston. In order to buy the agents time to capture Winston, Loid approaches Yuri as Winston and tells him that he will change the meetup location to a park.

Meeting at the park, "Winston" and the SSS agents question if the other are who they say they are. Loid says that his green tie and yellow gemstone tiepin was the signal that they specified. The agents report the color yellow to the Boss at HQ, who goes to chat with one of their officers, Jeffrey. The Boss reveals that a canary trap was set to reveal who was leaking their information by giving officers different colors of Wheeler's gemstone, then exposes Jeffrey as a mole working with WISE. Upon learning that Twilight is impersonating Wheeler, the SSS agents prepare to capture him. However, Loid is a step ahead and triggers several hidden traps around the park as he escapes.

Loid vs Yuri: Seeing Double
Loid disguises himself as Yuri and tricks the pursuing agents into heading elsewhere. The real Yuri arrives in the park and notices that Twilight left behind a track leading to the sewers. Yuri gives chase but is almost killed by Loid, who hesitates when he sees him. Yuri is shocked to find Twilight posing at him, while Loid is shocked to see Yuri, and the two men shoot at each other. At the Forger home, Yor is still rattled by Yuri's suggestion that Loid is having an affair and wonders to herself if Loid will be coming home late.

The fight in the sewer continues, with Yuri's shot injuring Loid's arm while Loid's shot knocks Yuri's gun away. The two then continue to fight in hand-to-hand combat, and Loid is shocked by Yuri's endurance. After knocking down Yuri multiple times, Loid ultimately comes out on top as Yuri finally collapses. Possibly believing that he is about to die, Yuri apologizes to Yor as Loid disappears into the sewers.

Fiona vs Winston
Meanwhile, at the Shellbury hotel, unable to find Wheeler, Fiona and the WISE Agent decide to switch their plans with the Agent putting on a disguise of Gascoigne, the SSS officer that Wheeler is supposed to meet. Wheeler, who has been waiting for the signal for the meetup, notices Gascoigne leaving the area. Believing that Gascoigne is leading him to an alternative meetup, Wheeler decides to tail him. Still unable to lure out Wheeler, WISE agents stage a car accident. By observing the onlookers' reactions and poses, Fiona finally identifies Wheeler. Realizing he has been made, Wheeler attempts to escape but is cornered by Fiona and another WISE agent.

With nowhere to run, Wheeler surrenders. Fiona has the other agent secure Wheeler by tying his hands behind his back and recover the files he stole. Concerned that he has the intel memorized, Fiona and the agent begin moving him. However, in that instant, he jumps up, moves his arms back in front, and uses the bind to take the agent hostage. Wheeler proceeds to tell Fiona to drop the gun and threatens to kill his hostage, but Fiona ignores his threat, saying they are all prepared to die. The WISE Agent disguised as Gascoigne suddenly arrives on the scene, and, using this to his advantage, Wheeler throws the hostage at Fiona and jumps down the railing to the level below. After freeing himself with the knife the agent dropped, Winston escapes into a nearby sewage pipe. Fiona orders the Agent to aid their teammate and send backup, then continues the pursuit into the sewer.

Inside the sewer, Loid, still wearing the disguise of Yuri, is attempting to get to a safe zone when he starts hearing footsteps. Not knowing the circumstances, he decides to assess the situation first. However, Wheeler has already gotten behind him and attacks him, which he barely dodges. Since he is still wearing Yuri's disguise, he decides to maintain his cover as an SSS agent to Wheeler. Unfortunately, Wheeler sees through the lies as he heard Loid's footsteps belonging to someone being pursued. Realizing he is talking to Twilight, Wheeler decides to unmask him, and they get into a melee. Fiona arrives at the scene of what appears to be an unconscious, possibly dead Loid as Wheeler is pulling the disguise off him. Consumed by rage, Fiona unleashes a forceful blow with her feet, stopping Winston in his tracks.

Story Impact

 * It is revealed that there are moles in both WISE Headquarters and Ostanian Intelligence.
 * Yuri and Loid meet for the first time during their secret jobs as an SSS agent and WISE spy, respectively, although the former is disguising himself as the latter. Their encounter results in Loid almost killing Yuri various times, but he hesitates each time.