'Arrow' season 5 episode 2 spoilers: Green Arrow trains new team as two new villains terrorize Star City

The first episode of "Arrow" season 5 has made it very clear that Oliver Queen (Stephen Amell) is back to his old vigilante ways. He is not going to hold back from killing his opponents and risk losing someone he cares for ever again.

Unfortunately, this is also what drives his sister and fellow masked archer, Thea Queen (Willa Holland), away from Team Arrow.

Good thing he still has Felicity Smoak (Emily Bett Rickards), his ex-fiancée and perpetual voice of reason, by his side, and a new roster of vigilante wannabes.

"It's not what the brochure promised," Oliver tells one of them in the episode preview posted by The CW. Being both Mayor Handsome and Green Arrow, the sworn protector of Star City simply has no time for a step-by-step tutorial on how to become a superhero, hence the boot camp he will be putting his new recruits through.

But Green Arrow is not the only one enlisting people on his team. The newly arrived criminal, Tobias Church, aka Charon (Chad L. Coleman), has also been growing his own team as well.

In the season premiere, he claimed to have already infiltrated all criminal organizations in Star City less than 12 hours since his arrival. By the end of that brutal scene, he seemed to have succeeded in getting everyone together under his sole command.

But it soon became apparent that he's the least of the Green Arrow's worries when a black-clad archer attacked one of the newly appointed ACI (Anti-Crime Initiative) cops in the final scene of episode 1. This could be none other than the season's big villain, Prometheus.

Will the new Team Arrow succeed in protecting the city the way their predecessors did? Or will they end up being a liability to the Green Arrow's cause? Could Prometheus turn out to be someone from that particular part of his past?

Executive producer Wendy Mericle said in an interview with IGN that Prometheus harbors a personal and vindictive grudge towards Oliver.

"He's going to come at him in a really interesting, sociopathic kind of way," Mericle added.

Meanwhile, The CW released "Superhero Fight Club 2.0." While the first version introduced Barry Allen aka The Flash (Grant Gustin) to Green Arrow's no-rule underground fighting ring, the second version sees The CW newcomer Kara Danvers aka Supergirl's (Melissa Benoist) initiation to the infamous club, which also includes heroes from "Legends of Tomorrow."

The CW's weekly superhero lineup kicks off with "Supergirl" on Mondays, "The Flash" on Tuesdays, "Arrow" on Wednesdays, and "DC's Legends of Tomorrow" on Thursdays. All shows air at 8 p.m. EDT.