Del's business backers send their assertive lawyer/accountant to investigate Del's disapperance, continue the business arrangements and settle any accountings.
The season opens with establishment of several character’s drive, or long-term intent, but it also explores the two main character’s motivation.
WENDY: Is this what we wanted? Another man is dead.
MARTY: People make choices, Wendy, and choices have consequences.
WENDY: Still, you could admit that it was good for us.
It’s dificult to tell from this exchange, which was featured in the Season 2 Trailer, if Wendy is saying that the fact that it was good for them poses a problem, which must be “admitted”.