"Welcome to Helios" is the first mission you get in Borderlands: The Pre-Sequel
Turn in: Jack
You landed on Helios and a CL4P-TP unit has asked that you follow it
CL4P-TP (Claptrap Unit)
Get to your employer.
You found Jack, and you saved him. Now, for extra credit, save Helios from the invasion.
Money, white shield, XP