Angles of Attack picked up right where Lines of Departure ended, give or take a week. With the joint refugee/task force facing slow starvation or an attempt to go back to save Earth, the attempt has to be made.
I can't do a plot summary without giving away the two previous books. Suffice to say, it's all action, there are maybe five named characters who matter to the humananity perspective inside of a military sci fi, and the action comes in massive bursts. I found it a quick read, and easy read, and a great roller coaster ride. I still prefer Lines of Departure, but this one definitely had its moments.
I recommend the series to fans of David Weber's action but not the droning politics or pages of sciencebabble.