Total Blackout by Alex Shaw is a page turner that grabs you in the first couple of pages.
Jack Tate is an MI6 agent and former SAS officer on vacation in Maine when a rogue Russian and Chinese taskforce triggers an electro-magnetic pulse device that wipes out all electrical and electronic equipment in the US (apparently this is also a side effect of a nuclear explosion). In the chaos that follows the leader of the Russian team is determined to settle several scores with those who he believes have insulted the Russian state and ultimately with Tate and his brother.
Total Blackout feels like it has been written to make into a Netflix type production and you can see further adventures for Tate and his brother. It’s not deep and it’s not that believable but it is fun and would make a good holiday read.