When the last trailer for USA Today.
The story over there tells us “Yondu is connected to the charismatic outlaw at the heart of the movie, Peter Quill (Chris Pratt). Years before he would become Star-Lord, Peter was an Earth boy who endured a tragedy and then was taken off his home planet by Yondu, the kid’s surrogate father figure.”
The USA Today article takes it even further, adding what might be considered spoilers for the upcoming movie, though I doubt it’s too much of a spoiler:
Yondu raises Peter alongside the Ravagers, an outer-space biker gang of sorts usually up to no good, and as an adult, Peter schemes with Yondu to steal a mystical and powerful orb.
But Peter grabs it and goes off on his own, which leads to Yondu and the Ravagers chasing him and the rest of the Guardians of the Galaxy as the misfit heroes also try to keep the orb out of the mitts of space villain Ronan the Accuser (Lee Pace).
The “orb” being referred to here may be the same one we saw Yondu holding in that click here.