Someone is hunting for members of the Parker family and Peter's sister--the one he didn't know he had--knows why. There follows a crazed cross-continental chase, some spy business, and some family revelations. Also some villainy and double-crossing by various parties.
I'm not sure what I think of Peter Parker's parents as glamorous spies, but that's nitpicking. It's a fun, high-energy book with some emotional wallop, even if some aspects are fairly predictable. Library Catalog