To celebrate the milestone 150th episode of Arrow, the writers have put together a moving tribute that addresses and honors the past seven seasons of the popular CW series, while still moving the stories along.

Arrow 7×12 is a departure from the standard the series has set for itself over the last seven years.

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As Oliver Queen has joined the Star City Police Department and has been deputized, the world is now aware of the many things Oliver did while masked as the Green Arrow since his return.

This episode, as a landmark episode, takes the opportunity to honor characters that have passed on or left Star City, while still giving a moving performance to recognize the importance of Team Arrow, which is the staple of the show.

The plot of the episode is as follows: As filming is underway for a documentary that captures the rise of vigilantism in Star City, a new threat emerges, one that has a vicious hate for all vigilantes.

As a vigilante hunter roams free, Oliver has to question whether he can subdue this criminal on his own or if he needs his old team to help him out.

Below are five secrets from Arrow 7×12 that will blow your mind.

There’s an interesting flash-forward reveal

Kat McNamara’s character, Blackstar, appears in the episode in a very interesting and unique situation, and she definitely has some secrets to spill.

Alongside her is a character we’ve seen before in the Arrow-verse, but not the exact incarnation. I wish I could spill more, but fans definitely do not want to miss this interaction.

The lives of several vigilantes are in limbo

Emiko finds herself in trouble, which, as the trailer reveals, leads Oliver to the villain’s lair. While there, he discovers several masks from other heroes/anti-heroes we’ve seen before.

The most worrisome is Huntress, whose mask is found in the lair, but is nowhere to be seen.

With an upcoming Birds of Prey-inspired episode, it doesn’t seem like a coincidence that Helena’s life would be put at risk, especially if they’re planning on bringing her back.

Old friends are revisited

While I won’t reveal exactly which characters are revisited, there are several that pay their respects to Oliver and the Green Arrow, as well as several that shed light on the rise of vigilantism in Star City over the last seven years.

Several departed faces show up in new scenes, as the documentary that is being filmed has been a work-in-progress since the Green Arrow first appeared.

With Oliver’s outing as the Green Arrow and his position with the SCPD, the creator of the documentary felt it was the perfect time to resume her work.

Additionally, we do learn that the documentary was created and distributed, but it was banned as pro-vigilante propaganda at some point in Star City’s history.

Another vigilante is unmasked

While everyone in Star City has been so focused on Oliver Queen coming into the light and working as the Green Arrow, Arrow 7×12 sees another hero take off their “mask” and reveal themselves to the world.

It’s unclear what implications this will have on the future of Arrow, but it’s quite possible that Oliver Queen won’t be the only person using their “unique” abilities to protect the city.

Team Arrow lives on

It’s been an interesting journey so far on Arrow season 7. Oliver’s imprisonment, plus the anti-vigilante law, has put a damper on all things Team Arrow as their lives depend on them not going out into the field.

While Curtis and Diggle found their own path at ARGUS, with Dinah and Laurel as very important city employees, Felicity and Rene were left out on the sidelines.

Since Oliver’s return, he’s found a way to continue working as the Green Arrow, with Dinah’s help. However, the rest of them continued to be ignored and their vigilante dreams crushed.

This episode provides an interesting solution and gives hope to a future where Team Arrow can continue to fight criminals together and not be pursued by the police.

Are you excited for Arrow 7×12? It’s a fantastic episode, regardless of the milestone status. If this episode does anything, it proves that Arrow‘s future is in the best hands possible.