Warning! Spoilers for Fantastic Four #21 below
The Fantastic Four may be Marvel's oldest superhero team, but even they need help sometimes. Plenty of heroes have been temporary members of Marvel’s First Family over the years, from Ghost Rider to Luke Cage. But two heroes they can always count on to lend a hand are Spider-Man and Wolverine.
In the new Fantastic Four #21, the Fantastic Four are on their way back to Earth after rescuing N’Kalla and Jo-Venn, two Skrull and Kree children, from a fighting pit at an intergalactic casino. The two children are supposed to be the “living histories” of the Kree and Skrull races and were imbued with “the knowledge and skills of every Kree and Skrull warrior in history” at birth. Even though the longstanding war between the two races has ended, N’Kalla and Jo-Venn only learned of this after the Fantastic Four rescued them, and are still having trouble getting along.
When a fleet comprised of both Skrulls and Kree blocks the Fantastic Four’s ship, Reed sends his own children, Franklin and Val, to escort N’Kalla and Jo-Venn back to Earth via the escape pod. Unfortunately, as is the case with most road trips, the children don’t exactly behave. After arriving back on Earth, N’Kalla and Jo-Venn start a brawl that causes the ship to crash in the street. Franklin tries to break up the fight while Val goes to the computer to get help. A bunch of heroes appear on the screen, including Hulk, Daredevil, Scarlet Witch, and Doctor Strange. But only two of them answer the call.
Shortly after, Wolverine appears through one of the mutant gates, upset that his “much-needed shut-eye” has been interrupted. Right in front of him, hanging upside-down in an archway is none other than Spider-Man, who also got the call. Well, less of a call and more of a mental distress signal, but they both recognize it as the Fantastic Four’s “summoning tech.” Spidey picks Wolverine up to swing to the rescue - much to Logan’s displeasure. Doctor Strange or Scarlet Witch may have made for more powerful allies, but the banter between Wolverine and Spider-Man never fails to entertain. Both characters have technically been members of the Fantastic Four, as bizarre at that might seem.
When the two arrive, N’Kalla and Jo-Venn have finally stopped fighting, but Wolverine and Spider-Man still sense danger. When Logan catches the scent of a Skrull, he assumes that’s what the danger is. He proceeds to stab N’Kalla through the chest, unaware that she is merely a child since she had shape-shifted into a tiger. The wound sends N’Kalla into critical condition, and to make matters worse, the evil order known as the Dark Harvest arrives on the scene - and they’re after the children. But to get them, they’ll have to go through Wolverine and Spidey, or as Peter calls them, “The Spectacular Spider-Man and his sidekick, claw-lad!” The character's conflicting personalities are one of the most fun aspects of their relationship - so they'll surely butt heads as they do their best to help the Fantastic Four.