The show followed the adventures of Allegra, a young puppet who lived in a brownstone with her preschool-aged friends Lindi, Rondo, and her pet bird, Riff. Together, they would go on imaginative journeys, solve problems, learn new things, and sing songs. Each episode featured a central theme or lesson, such as friendship, creativity, or empathy.
Allegra's Window also featured the live-action segments with Allegra interacting with her human friends, Mr. Cook and Ms. Laura, who served as caregivers and mentors. Throughout the series, Allegra would learn valuable life lessons through her experiences and interactions with her friends and adults.
The show's bright colors, catchy songs, and lovable characters made it a hit with young viewers. It was praised for its educational content and positive messages, teaching children important social and emotional skills. Allegra's Window remains a beloved children's show that has left a lasting impact on those who watched it during its original run.