At the end of last issue Clint Barton returned in his old identity as Hawkeye (but in a new costume), accompanied by Hercules amnesiac but spouting a prophecy that last issue's villain Ares would enslave Earth and Asgard. The Avengers now fail to restore Herc's memory. Including contacting Black Panther and Ant-Man for scientific advice.
Meanwhile Hawkeye explains how he got here. He was last seen in #96 infiltrating a Skrull spaceship that was intent on destroying the Earth. He was still costumed as Goliath, but without any growth serum. So he jury-rigged a makeshift bow and arrows, and used his old skills to destroy some machinery which resulted in the ship exploding. Clint escaped in his one-man craft, and made it back to Earth.
He found himself in Yugoslavia, and joined a travelling circus as an archer. Whose strong man turned out to be Hercules, whom they'd picked wandering in Greece without his memory.
When the carnival reached Belgrade Clint tried to phone the Avengers, but got no answer. So he tried Tony Stark and got Kevin O'Brien (in Guardsman armour), who arranged a flight home to the US for him and Hercules. (Kevin has since died in Iron Man #46.)
Now Hawkeye takes Scarlet Witch aside and professes a long-simmering love for her. Vision overhears and pointedly leaves them to it. But Wanda brushes Clint off and goes to see her brother Pietro. Quicksilver confronts her with his suspicion that she is in love with Vision. And she admits it.
Captain America, Iron Man and Thor are now attacked by Olympian demigods Kratos and Bia, sent by Ares to get Hercules, who seems unwilling or unable to fight back. Quicksilver and Scarlet Witch join the fight, followed by Hawkeye.
Vision is expressing his angst to Jarvis, who has also noticed the sparks between him and Wanda. But then he hears the commotion and rushes to aid his comrades.
But he arrives to find his love unconscious, and does nothing to stop Kratos and Bia taking Hercules with them, but just cradles her body.
Angry Hawkeye accuses Vision of dereliction of duty, and Vision admits that he couldn't do anything while Wanda was hurt. His feelings are now out in the open. But Wanda is disappointed in the 'man' she loves.
The Avengers agree to table the discussion for now, and invade Olympus for answers.