Adventure Comics #341
Title: "Colossal Boy's One-Man War!"
Published: February 1966
Writer: Edmond Hamilton
Artist: Curt Swan

Key Facts:
Triplicate Girl renamed Duo Damsel, later becomes Duplicate Damsel

Synopsis:
The Legion of Super-Heroes faces one of their toughest challenges as Colossal Boy takes center stage in a personal and daring mission. When the villainous aliens known as the Durla Raiders capture his parents, Colossal Boy embarks on a solo quest to rescue them, defying Legion protocols that discourage lone operations.

The story begins with the Raiders launching a surprise attack on Earth, kidnapping Colossal Boy’s parents along with several other citizens. The Legion mobilizes to repel the invasion, but Colossal Boy, driven by a deep sense of duty and family loyalty, secretly sets out alone to confront the kidnappers and rescue his family.

Using his size-changing powers to their fullest extent, Colossal Boy infiltrates the Raiders' heavily fortified base. His daring actions and clever use of his abilities allow him to overcome numerous obstacles, but he soon realizes that the Raiders have advanced technology capable of neutralizing his powers. Despite this, his determination and quick thinking keep him one step ahead of his enemies.

Meanwhile, the Legion discovers his absence and, although concerned for his safety, decides to support him by coordinating a larger-scale assault on the Raiders' fleet. In a climactic battle, Colossal Boy frees his parents and helps the Legion defeat the Raiders, ensuring their surrender and saving the hostages.

The story concludes with Colossal Boy receiving a reprimand for disobeying orders, but his bravery and resourcefulness earn him the respect and admiration of his teammates. The issue highlights his devotion to family and the importance of teamwork, even in the face of personal challenges.

Adventure Comics #341 is a thrilling tale of heroism and defiance, showcasing Colossal Boy's unique abilities and deepening his character while delivering an action-packed narrative.