The annual meeting between Earth-One‘s Justice League of America and Earth-Two‘s Justice Society of America is about to get some gatecrashers! When ‘evil JLA’ known as the Crime Syndicate of Earth-Three show up uninvited, it’s going to hit crisis point. Prepare for time-travel, the All-Star Squadron, the villainy of the time-hopping Per Degaton and paradoxes galore!
Crossover: This is a standard five-part crossover event.
Anthology Issues: When an issue contains multiple stories, the relevant story is denoted with square brackets. For example, [2/5] refers to the second story of the five stories in that issue.
Spoilers: The issue descriptions and fallout section contain spoilers, so be warned!
Previous events that directly impact this story:
- THE WORLD ON FIRE (1981) – Per Degaton’s last clash with the JSA
Want to keep it simple? Here’s the chronological reading order without story descriptions, or spoilers:
- Justice League of America #207
- All-Star Squadron #14
- Justice League of America #208 [1/2]
- All-Star Squadron #15
- Justice League of America #209
| Must Read | Title, Issue & Synopsis |
| ✔ | Justice League of America #207 When Doctor Fate, Green Lantern (Alan Scott), Huntress, Power Girl and Starman (Ted Knight) of the Justice Society of America of Earth-Two use the Transmatter Cube to jump to Earth-One to visit the Justice League of America, they’re sent to the Interdimensional Limbo. Instead, the Crime Syndicate of America of Earth-Three materialise in the Justice League Satellite! The Crime Syndicate defeat the League and take a rocket ship to escape to Earth. The Socirty break free of the prison that once held the Crime Syndicate and jump through the tear the villains made in reality, only to find themselves in the ruins of Earth-Prime (the ‘real’ world), destroyed in a holocaust by the time-travelling Per Degaton. At the Satellite, Aquaman, Firestorm, Hawkman, Superman and Zatanna recover and jump to Earth-Two to check on the JSA, but find Per Degaton has ruled their world for around 40 years. Superman speeds the JLA through time to 1942, where they meet the All-Star Squadron… |
| ✔ | All-Star Squadron #14 In 1947, Professor Malachi Zee was shot dead by his assistant Per Degaton, who used his Time Machine in a bid to conquer Earth. Instead, he was drawn to the Crime Syndicate’s prison in Limbo. Allying himself with the Syndicate, Per Degaton took the team to Earth-Prime, circa 1962, to steal nuclear missiles from Cuba. He then sent the Crime Syndicate to Earth-One, circa 1982, before they could betray him, travelling to Earth-Two, 1942, to use the missiles to threaten the world. After Commander Steel, Firebrand, Johnny Quick, Liberty Belle and Robotman if the All-Star Squadron defeat Nuclear, the self-proclaimed ‘magnetic marauder’, they enter the JSA’s meeting rooms. Of course, they’re surprised to see the Justice League… |
| Must Read | Title, Issue & Synopsis |
| ✔ | Justice League of America #208 [1/2] Superman and Robotman order the inevitable clash between the teams to stop. The two teams respond to a call to the White House when Per Degaton makes his demand to have control of the whole world over to him. On Earth-Prime, 1982, the JSA are attacked by humans who were mutated by the fallout of the war triggered by the theft of the Cuban nukes, twenty years earlier, when America and Russia blamed each other for the Crime Syndicate’s attack. On Earth-Two, 1942, Per Degaton demonstrates the power of just one of his missiles in the Atlantic Ocean. Afterwards, the five lost members of the JSA materialise in this time. |
| ✔ | All-Star Squadron #15 While they were trapped on Earth-Three, Doctor Fate, Green Lantern and Starman combined their powers to travel back in time to Earth-Two, 1942. Now, Per Degaton threatens to unleash his missiles on any nation that fails to cede power to him in five hours. The heroes split into five teams. Doctor Fate, Robotman and Superman demolish Degaton’s satellite, while just narrowly defeating the returning Ultraman. Aquaman, Liberty Belle and Starman overpower Superwoman and flood Degaton’s island base that houses three missiles. Hawkman, Huntress and Johnny Quick find more missiles in the American Midwest. Power Ring launches one, but Quick dismantles it while Huntress defeats Johnny… |
| ✔ | Justice League of America #209 The missiles hidden in Geneva are accidentally launched during the clash between Commander Steel, Firestorm & Power Girl and the Crime Syndicate’s Johnny Quick. The three heroes disarm the final three missiles before they hit Europe. Firebrand, Green Lantern and Zatanna help active the prototype time machine built by Professor Zee and Professor Damon Everson in 1942 and use it to travel to Earth-Prime, 1962. On Earth-Two, the gathered heroes capture Per Degaton and Owlman beneath what will become the Pentagon. On Earth-Prime, the heroes stop Per Degaton and the Crime Syndicate from steeling the nukes, causing a paradox which undoes the events of the last few days. The JSA emerge from the Transmatter Cube aboard the Justice League Satellite and the two teams celebrate, despite being unaware of their own victory. |
| Must Reads | Issue(s) & Fallout | Event/ Crossover |
| Justice Society of America #50 (2011) The paradoxical version of Per Degaton who was opposed by the JLA, JSA and All-Star Squadron is absorbed by ‘Degaton-Prime’ who seeks to combine all versions of himself from the multiverse. | ||
| All-Star Squadron #16 (1982) Nuclear returns and kidnaps Steve Trevor, leading to another clash with the All-Star Squadron. | ||
| ✔ | Justice League of America #219-220 (1983) The next JLA/JSA reunion is interrupted by Johnny Thunder. | |
| Justice League of America Annual #2 (1984) The grandson of Earth-Two’s Commander Steel joins the Justice League as Steel on Earth-One. | THE END OF THE JUSTICE LEAGUE | |
| ✔ | Crisis on Infinite Earths #1 (1985) The Crime Syndicate somehow return to Earth-Three, but their reality is completely destroyed by the Anti-Monitor. | CRISIS ON INFINITE EARTHS |
| All-Star Squadron #50 (1985) The All-Star Squadron’s Johnny Quick and Liberty Belle get married. | CRISIS ON INFINITE EARTHS | |
| Impulse #11 (1996) Johnny Quick sacrifices himself to save his daughter. | DEAD HEAT |
| Collected Edition Title | Includes… |
| Crisis on Multiple Earths vol.6 Crisis on Multiple Earths – Book 3 | All-Star Squadron #14-15 Justice League of America #207-209 |
Reading Order © Omniverse Comics Guide 2025
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