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 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.
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 Flash #50 brings Flash War to a speedy conclusion while also opening plenty of doors for Barry and Wally to run through next.