A message to CT-7567 “Dear Rex. These are confusing times. The Republic is gone, a new Empire has risen to take it’s place, and us clones are being filtered out, to make room for enlistees. I’m leaving you this message, because I know that if any other clone could have escaped Order 66, it would be you. When the time is right, come find me. We have alot of work to do." - Slick.
After the fall of Kamino, Echo wondered why Omega went through so much trouble to save a droid. But when he linked with AZ and delved deep into his backup memory banks, he makes a chilling discovery. (One shot)