Superman 4: Superman's Pal Jimmy Olsen
Jimmy and Lucy were having coffee when a man calling himself Bloodsport shot up their diner. Jimmy contacted Superman. When he arrived, Maggie Sawyer and MCU were already on the scene. Sawyer told him close to 25 were dead. Superman headed off on Bloodsport's trail, Jimmy on Superman's trail.
Superman caught up with the maniac in a bowling alley. He got the first hit in, but a pistol appeared in Bloodsport's hand. He hit Superman with a Kryptonite blast. Jimmy showed up and grabbed one of Bloodsport's dropped guns. He tossed a smoke grenade and escaped.
Doctors were able to remove the Kryptonite slivers from Superman. He told Jimmy he knew who was behind the new villain. When Luthor heard the man had killed around 50 civilians, he ordered him terminated - Superman was to have been his only target. Superman caught up with the mad man soon and realized he wasn't creating weapons, he was teleporting them somehow. While they fought, Luthor sent a tank to take him out. Bloodsport neutralized the tank, but while doing so, Superman took out his ability to bring in new weapons.
Bloodsport's brother, Mickey, rolled in on his wheelchair. As he got Bloodsport to stop, Jimmy told Superman the story: Robert DuBois (Bloodsport) had been a draft dodger. His brother Mickey had gone to war for him and lost his limbs. Guilt had caused Robert to lose it a bit and he'd been in and out of psychiatric hospitals for years. Bloodsport ended his rampage.

Adventures of Superman 427: Mind Games
Superman flew to Qurac hoping to "convince" their president to stop exporting terrorism. Superman went down - a telepathic being was reading his thoughts. The creature, named Prana, attempted to reshape his memories of Krypton so that he would believe his parents wished him to rule Earth. Superman fought back. Still dazed, he left the presidential palace and returned to his hotel.
While he slept, Prana returned to his thoughts. Hallucinations of Lex Luthor, Synapse, Metallo, and Bizarro attacked him. He awakened even more confused. Thinking of home, he took a shower - another entered his mind. He believed he was in Japan fighting a godzilla-like creature. Prana died, but his mate continued his fight. Lana, Cat, and Lois then attacked Superman. He defeated the visions, but the "Circle" still questioned him...

Adventures of Superman 428: Personal Best
Before leaving Qurac, Superman dismantled every vessel in both their Air Force and Navy.
Clark and Cat watched a television interview of Perry White. He'd uncovered evidence about a very prominent mobster in Metropolis who was going to trial soon.
Perry's son attempted to quit a street gang he was in, and they pulled knives on him. He was saved when a man in an overcoat fired a warning shot into the air. He and his associates grabbed the boy and drove off. Jerry's captors soon called White and told him to retract anything about Jay Falk (the mobster) or he'd be without children.
Superman roughed up some of Falk's men and got the word to the mobster that he wanted White's kid back. Perry struggled in attempt to write a retraction. Superman saved the boy and returned him to his parents. Jerry stormed out when he realized his father had not tried to save him.

Action 587: Cityscape
Glenda Mark and Jason Blood visited a shop in Gotham City. Glenda accidentally activated an item and all around her began becoming part of an artificial cityscape. Jason Blood released Etrigan.
Superman saw the growing city from space and headed in to help. Realizing they were growing, Superman punched one. Etrigan burst in and stopped him - the damaged towers were bleeding. Etrigan told him they were people and transmitted him back in time to the year 1162 AD when the magic creating the towers was conceived. Superman was to find Jason Blood. He did, and explained to him the situation. Blood led Superman to Morgaine Le Fay, who was masquerading as a young girl. He was able to break her spell and negate him even being there.
Blood and his companions looked up from the shop and saw him flying overhead.

Superman 5: The Mummy Strikes
Clark woke up from a dream where Superman and Wonder Woman teamed up to destroy some mechanical dogs, then kissed. He realized he'd been thinking about her quite a bit since the G. Gordon Godfrey situation.
At the office, Perry White told him to head to South America - Lois was there and possibly in trouble. Superman saw no trouble, so he "dropped off Clark." Kent found Lois and was shown their find: metal workings dating back 6000 years and an elaborate structure deep below the Earth's surface.
When they placed a key into it's lock, a gargantuan mummy attacked them. Clark got everyone to safety then trapped himself in with the creature. After fighting it for a while, he removed the key. An explosion rang out; Lois and her group got to Clark and sent him to get medical attention.

Superman 6: The Last Five Hundred
Clark woke up after two days of being unconscious. He quickly realized that things weren't as they seemed - "Lois" wasn't "Lois." Some other beings had taken over the bodies of her and the rest of her group. They were the last 500 of an ancient civilization (H'v'Ler'ni). When a plague struck them, 20,000,000 fled Earth, leaving 500. They placed their minds in a giant robot and waited for technology of Earth to near what they'd done. Superman could not be possessed due to him being unconscious during their return.
The giant robot (which had been mummified at some point in the past) had to be defeated. Superman went after it and it (Host) realized it needed the minds which had left it to be at full power. It called them back (returning Lois to her body, etc.) and Superman continued to bash it. When he realized all the souls wanted out, he faked being dazed. The power of the 500 together overloaded Host and it exploded.

AoS 429: Old Ties
As Superman saved a passenger plane from crashing into Metropolis, The Circle plotted against him.
Cat showed up at Clark's apartment and invited him to go skiing with her. He was on the way before he realized it. While they had dinner, Cat saw a news report and broke down. A former lover was being indicted and he had custody of their son whom she'd not seen in five years.
Superman headed to Hollywood to confront Cat's former lover, Joe Morgan. In Morgan's apartment, Superman was attacked by Concussion - a member of The Circle. After a battle, Superman emerged victorious. The boy wouldn't let him near his injured father, so Superman called for an ambulance (Morgan had a punctured lung).
In the hospital, Cat and her son were reunited. Superman wondered if he was Clark Kent or if he was Superman.

Action 588: All Wars Must End
Superman followed a hypersonic beacon to Midway City. He soon realized through the destruction that Hawkman and Hawkwoman had been calling for him. They introduced him to Ved, who they said was a world conqueror from their homeworld of Thanagar - an invasion army would follow soon. Superman joined them on his ship and they headed for the moon. Hawkwoman told Superman about another of their captives - Byth. The criminal they'd been chasing when they first arrived on Earth.
They soon found the invasion fleet. Superman exited their ship and began attacking the others. Katar went outside the ship to make repairs when they were hit. Byth escaped and attacked Shayera, but she recaptured him and Ved. When Katar got back inside, the ship began to fly on its own. He manually enacted the overload plan, which activated all the other ships' hyperdrives remotely. The fleet was scattered across the universe, but they were still heading for the sun.

Action 589: Green on Green
Arisia, a Green Lantern, found Superman in space. She got him to their space station in hopes that her teammates could save him. He awakened to find himself in the presence of several GLs (including Kilowog, Ch'p, Arisia, Salakk, Hal Jordan, John Stewart, and Katma Tui). When he asked about the Hawks, they told him they were 500 light years from Earth. He proclaimed Earth was being invaded. They explained the overload tactic which they believe was the cause of some interference. The GLs could not be bothered - they were looking for a new homeworld for some beings they'd encountered who were the last of their race, left without a home due to the Crisis.
They decided to split up when they found a huge lifemass heading toward Earth - Arisia, Katma Tui, Hal, and Salakk went with Superman while the others continued their quest for a planet.
The thing - which appeared to be a huge bacteria - attacked them. It was yellow. They soon beat through the cloud enough to find the mass was soil. Superman realized it was from the meeting he'd had with the Phantom Stranger (Action 585). The GLs encased the planetoid in their power and moved it into deep space. In the cold, the planetoid began to change - Salakk believe it could be manipulated a bit more and turned into a home for the creatures they'd come across.