Barry Allen was struck by lightning and fell into a coma. When he awakens from it 9 months later, he meets Cisco Ramon, Harrison Wells, and Caitlin Snow, and later he realizes that he that he has powers and how it had been caused by the explosion of the particle accelerator.
Four best friends take their book club to Italy for the fun girls' trip they never had. When things go off the rails and secrets are revealed, their relaxing vacation turns into a once-in-a-lifetime cross-country adventure.
It showcases the perspectives of the biggest stars of the league, navigating the week-to-week challenges to remain at the top, and tracking the rivalries as they vie for fans' attention.