All 46 issues of the first series were written by Chris Claremont, and featured a globetrotting X-Men team led by Storm.
The X-Treme X-Men contained Storm, Rogue, Gambit, Bishop, Sage (Tessa), Thunderbird (Neal Shaara), Psylocke and Beast as original line up.
The book is most notable for the death of the popular character Psylocke (now resurrected) in its early issues, and it showed how Beast mutated into his lion-like form.
The team tangles and defeats Brainchild (who makes Storm lose control of her powers for a time, bringing out her inner warrior akin to Wolverine's berserker rage).
The leader of an Australian mafia (known as the Viceroy) dies mysteriously (as if drowning in his own room), and the team must protect his mutant children (Lifeguard and Slipstream who were in the dark as to their real father).
The mafia and police accuse Gambit of murder of the gang leader and Bishop and Rogue take charge to clear his name.
The Annual (2001) deals with Reavers, the Shadow King, and contains a backup story featuring Kitty Pryde and the threat of Purity.
Gambit seeks to obtain Ororo's mother's ruby which was part of a set that, when empowered, could open a portal between dimensions.
Shaitan then uses the gems and Gambit's mutant ability to empower them, thus opening the portal for his master, Khan (who, taken by Ororo's powers and beauty, wants to make her his queen).
Rogue finds Vargas and fights him in order to avenge Psylocke's death and his attempted murder of her and Gambit, as predicted in the diaries.
The fight is filmed by a news crew and just as the camera loses power, Rogue is shown standing over Vargas with a sword, poised to strike.
In the midst of the battle in Khan's invasion platform, Lifeguard's power reacts unexpectedly to conceal her identity, leaving her permanently as gold-skinned, bird-like humanoid - revealing her Shi'Ar heritage.
Emma Frost promptly kicks out members Sage and Bishop when they visit because she believes that mutants should police themselves.
Storm and Emma pull it together long enough to facilitate the rest of the team's escape, who then stop Bogan, though certainly not for good.
Kitty Pryde's Mekanix miniseries (arc 9) deals with her college life right after she leaves the X-Men and has to face Purity as well as the Sentinels.
Issues 36-39 (what could be considered arc 13) deal with one of Ororo's missions as part of XSE (i.e., exposing mutant slave trading network and gladiatorial battle arena in Japan).
So far, the team have defeated three: one on a world where mutants are gods, another in a wild-west scenario, and a giant spacewhale being controlled by a Brood Queen.
After those two missions, Kurt Waggoner takes a detour to his home reality, with Dazzler and Howlett giving chase.
During the crossover, AoA Nightcrawler's trip home resulted in the release of three evil beings that destroy anyone they touch.
Several casualties resulted, including the AoA's Nightcrawler, Sabretooth, Horror Show, and Fiend, as well as the X-Treme X-Men's Kurt Waggoner, Xavier and Hercules.
The surviving X-Treme X-Men team members, Dazzler, Sage, Howlett, and Corporal Summers all remained on Earth-616.