Superman sends Kara a letter, instructing her to practice using her Super Speed to break the time barrier and travel into the future, as one of her trials. She does, arriving in a futuristic asteroid orphanage sometime in the 21st Century. However, she quickly falls prey to a Kryptonite rock. When a young boy named Tommy saves her life, she's determined to pay him back-- but every time she tries, he helps himself first, using advanced technology. Finally, she helps him get adopted, soon learning that his name is Tommy Tomorrow.