Arc 1Recruiting the Mutant Crew

Sing Sing recruited Mutants for a Chinese construction work unit while rescuing Riptide’s brother and evading Stryker’s forces. After negotiating passage on Black Shark’s freighter, he confronted the captain when he tried to take Amy and Lorna to his cabin.

Chapters 1–2525 summaries

Arc 2New Recruits, New Posts

Sing Sing brought a group of Mutants to China, arranged treatment and work for them, and helped each find a place in the 749 Bureau’s network. As the recruits settled into their roles, he returned Mortimer to Tiankeng Village and began planning a job for Wandering Girl.

Chapters 26–5025 summaries

Arc 3The Las Vegas Recruitment

Sing Sing recruited Gambit and tried to bring Wolverine into the 749 Bureau while confronting Avalanche and Silver Peak’s prison operation. After rescuing the surviving captives, the group took refuge in a wine cellar, where Wolverine agreed to observe the bureau’s work and Gambit chose to stay in Las Vegas.

Chapters 51–7525 summaries

Arc 4Overseas Recruit Assessments

Sing Sing helped place the rescued newcomers and traveled across China to assess how the overseas recruits were adjusting to their work. After settling Wolverine on Peach Mountain, Sing Sing completed visits with the other recruits and ended his rounds at Space City with Polaris and Soft Serve.

Chapters 76–10025 summaries

Arc 5Recruiting Mutants in America

Sing Sing captured Sabretooth and was sent to the United States, where he fought Stryker’s Reavers and recruited Deadpool, Beast, and Professor X’s help for the 749 Bureau. He agreed to travel to Los Angeles to find Storm and take three other Mutants into the Bureau’s care, leaving Deadpool behind after taking his hidden money.

Chapters 101–12525 summaries

Arc 6Recruiting Across the Snow

Sing Sing recruited Darwin and Moon-Boy while fighting Silver Peak and trying to reach Los Angeles, then brought Moon-Boy to China under Alpha Flight’s protection. Darwin returned to Alaska to protect Margaret, while the search for Devil Dinosaur and Sing Sing’s next assignment remained unresolved.

Chapters 126–15025 summaries

Arc 7The Silver Peak Raid

Sing Sing rescued captive mutants and recruited several of them while pursuing Silver Peak’s operations across Los Angeles and New York. The arc ended with Yan Shuangying destroying Silver Peak clones underground as Sing Sing faced Gambit and his companions at the shipyard.

Chapters 151–17525 summaries

Arc 8Storm Joins the Bureau

Sing Sing brought Storm into the 749 Bureau and helped settle new recruits as the organization moved into a new base and put Mutants to work in a major earthquake rescue. Director Wang then assigned Sing Sing to go undercover in Japan to find Wolverine’s possible child, though Sing Sing remained reluctant to leave.

Chapters 176–20025 summaries

Arc 9The Toyo High Infiltration

Sing Sing infiltrated Toyo High as Hoshino Seiichi to investigate the sixty-three people taken by the Japanese army, while also pursuing leads about Wolverine’s possible child. He uncovered a dangerous underground complex beneath the old school, clashed with the school’s delinquents, and learned that Mariko had confirmed her child was adopted.

Chapters 201–22525 summaries

Arc 10The Blue Oni and Toyo’s Fall

Sing Sing uncovered Toyo High School’s human experiments, rescued Gu Qingshan from the Blue Oni transformation, and brought the school’s hidden crimes into the open. As the students rioted and Mariko and Yukio fought to protect Amiko, Cornelius’s nerve sedative left Sing Sing facing Silver Samurai alone.

Chapters 226–25025 summaries

Arc 11The Yashida Mission

Sing Sing helped stop the experiments beneath Toyo High School, reunited Logan with Daken, and brought the survivors and evidence back to China. After the 749 Bureau dealt with the fallout, Sing Sing began new assignments and reunited with Storm in Shanxi, where officials were competing to use her for rainfall projects.

Chapters 251–27525 summaries

Arc 12The Seattle Infiltration

Sing Sing rescued Devil Dinosaur and Moon-Boy from Stryker’s forces, then returned to the United States after recovering in Canada. He traced Silver Peak’s Seattle operations to a cannery and charged in to help a wounded woman pursued by Kellman Industries men.

Chapters 276–30025 summaries

Arc 13The Core Zone and the Pursuit

Sing Sing and his allies infiltrated the Core Zone, rescued Magik, and defeated Sugar Man, but Mondo died and Gambit was captured under Lady’s control. As they fled toward Canada, Omega Red and Lady Deathstrike attacked, and Snowbird carried Sing Sing away after helping him escape.

Chapters 301–32525 summaries

Arc 14Return and New Year Cup

Sing Sing brings the survivors to China, where the 749 Bureau treats and recruits several of them while preparing to pursue the enemies responsible for Mondo's death. The arc ends with a New Year Cup football match between the bureau and its mutant recruits.

Chapters 326–35025 summaries

Arc 15Silver Peak Showdown

Sing Sing traveled to Utah to investigate Silver Peak, rescue Little Jacob Gavin, and confront the bounty hunters and experiments tied to the Hellfire Club. He recruited Christina and fought through Silver Peak’s containment tower, where two cybernetic swordsmen launched a faster pincer attack against him.

Chapters 351–37525 summaries

Arc 16Jacob’s New Body

Sing Sing tracked Little Jacob to Miss Sinister’s abandoned facility and found the boy’s living brain, then recruited Christopher Muse to regrow Jacob’s body. The rescue led to a clash with loan enforcers, and the arc ended as Sing Sing used Inner Qi to counter the explosive collars on twelve students.

Chapters 376–40025 summaries

Arc 17The Silver Peak Raids

Sing Sing brought the rescued students and their allies to the 749 Bureau, where they settled in and prepared for operations against Silver Peak. The bureau launched raids across North America, clearing a dock base while another team called for help in Chicago.

Chapters 401–42525 summaries

Arc 18Fall of Silver Peak

The bureau teams dismantled Silver Peak Consortium’s facilities, captured or defeated its forces, and confronted Miss Sinister in her central laboratory. Miss Sinister and her ultimate weapon fell, and the wounded survivors returned to the bureau for treatment and compensation.

Chapters 426–45025 summaries