(this story is how Freddy got the letter Supersonic sent him and how he came into YJ3)
Freddy Freeman was on his bed thinking about the past few years, he didn't know why, he just was and it was making him feel down. Mary and Billy had come over in order to cheer him up, "What are you guys doing here?" he asked "We have noticed that you're a little down and we thought you needed cheering up" said Mary with a smile that made Freddy blush a little "We've heard of this team called Young Justice" said Billy.
Freddy's head snapped in Billy's direction "young Justice, They've reformed?" said Fredy in amazement "That's what the JLA said to me" said Mary "and I knew that You would be impressed by that so, I came to tell you in order to help you get back in the game." Freddy looked at his surrogate siblings and wondered about this "I don't know, I've mostly been a Titan and the YJ team that I was on lasted only one mission" he told them "Well think about it and we will want to hear if you joined or not" said Mary "See ya Junior" said Billy jokingly and he left behind Mary.
"I guees I could give it a try" said Freddy. He turned to his Labtop and went to his mail where he saw one entry and it didn't mention the sender, he clicked on it and a message came out saying:
Dear Captain Marvel Jr,
We feel that your expertiece is well needed in our team. We will appretiate it if you come to our base over in Hawaii and try out. It's a secluded area, don't bother looking for us, we will find you.
"Well, that's very forceful" said Freddy. He looked again at the message and looked in the direction of Hawaii "I'll do it" said Freddy confidently, he limped over to his stuff and packed everything he had. When he had everything he needed, he turned and said "Captain Marvel!" instantly turning into CM3 "Okay, I have everything" he grabbed his suitcase and crutch and flew off towards Hawaii.