After the Metal crossover event ends, Barry and Wally will be left picking up the pieces in Flash War. The story runs from Annual #1 to The Flash #46.
The first Flash Annual of the post-Rebirth era plants the seeds for Flash War, first by peeking into Wally West's life since his return and by exploring the tension between him and Barry.
The Flash #48 is one of the strongest entries in recent memory, tugging at Wally's heartstrings while throwing a big burden down at Barry's feet.
The Flash #50 brings Flash War to a speedy conclusion while also opening plenty of doors for Barry and Wally to run through next.