M In the House of M storyline, Magneto is victorious in a mutant/human war. The Sentinels are adapted by Sebastian Shaw, now the director of S.H.I.E.L.D., to serve a reverse purpose, and now aid in the hunting of sapien rebels. MC2 In the MC2 timeline, Wild Thing encounters a Prime Sentinel that has accidentally been activated by a faulty microwave. Ronin In the alternate reality of X-Men: Ronin, the story is played out in Japan. A police unit called "Sentinel Force" designs, builds and pilots the robots. These are aesthetically similar to regular Sentinels, but each is subtly different from the others. Star Trek In the comic crossover X-Men/Star Trek: Second Contact, the X-Men work with the crew of the Enterprise-E to battle Kang the Conqueror. An away team composed of Captain Picard, Deanna Troi, Nightcrawler and Colossus encounter an approximation of the "Days of Future Past" timeline, in which the Sentinels have merged with the Borg. Ultimate Marvel The Ultimate Marvel version of Sentinels were created by Bolivar Trask, were already in action in the Ultimate X-Men story arc, hunting down and killing mutants on the streets, in a program apparently openly and publicly acknowledged by the U.S. government. Later on, there were also the New Sentinels that were sixty of S.H.I.E.L.D.'s top agents in Sentinel battle armor and they were described to have enough hardware to take on a fleet of the old Sentinel models. A new breed of Sentinel robots, created by Trask under the Fenris twins' orders, was later created. After the events of the Ultimatum Wave, Nimrod Sentinels was deployed to hunt, capture or kill mutants that refused to turn themselves in. William Stryker, Jr., using Sentinel tech, later displayed an ability to summon a fleet of Sentinels after being attacked by the Shroud. What If? In What If... Starring Cannonball's little brother Josh—and his pet Sentinel", shows Josh (who would, in normal continuity, later become Icarus) finding and adopting a Sentinel. In "What if... Starring Secret Wars: 25 Years Later", the children of Marvel heroes are teleported back to Earth where, sometime in the last 25 years, a variation of "Days of Future Past" is shown when the group is attacked by Sentinels. In "What if... Starring Juggernaut: The Kingdom of Cain", Juggernaut has killed the X-Men, and as a result there is no one to oppose the Sentinels, so the world is ravaged