Colorado Parks & Wildlife Research Library

In a universe as vast as it is mysterious, a small but powerful force has existed for centuries. Protectors of peace and justice, they are called the Green Lantern Corps. A brotherhood of warriors sworn to keep intergalactic order, each Green Lantern wears a ring that grants him superpowers. When a new enemy called Parallax threatens to destroy the balance of power in the Universe, their fate and the fate of Earth lie in the hands of their newest...

Two years of stalking the streets as the Batman, striking fear into the hearts of criminals, has led Bruce Wayne deep into the shadows of Gotham City. With only a few trusted allies, Alfred Pennyworth, Lt. James Gordon, amongst the city's corrupt network of officials and high-profile figures, the lone vigilante has established himself as the sole embodiment of vengeance amongst his fellow citizens. When a killer targets Gotham's elite with a series...

Bob and his wife Helen used to be among the world's greatest crime fighters, saving lives and battling evil on a daily basis. Fifteen years later, they have been forced to adopt civilian identities and retreat to the suburbs where they live "normal" lives with their three kids, Violet, Dash, and Jack-Jack. Itching to get back into action, Bob gets his chance when a mysterious communication summons him to a remote island for a top secret assignment....

Peter Parker finds a clue that might help him understand why his parents disappeared when he was young. His path puts him on a collision course with Dr. Curt Connors, his father's former partner. Includes bonus features.

Armed with the astonishing ability to shrink in scale but increase in strength, master thief Scott Lang must embrace his inner-hero and help his mentor, Dr. Hank Pym, protect the secret behind his spectacular Ant-Man suit from a new generation of towering threats. Against seemingly insurmountable obstacles, Pym and Lang must plan and pull off a heist that will save the world.

Miles Morales is the new Spider-Man but must also walk the balance between his personal high school & family life and his life as a superhero. While being Spider-Man, he becomes familiar with the Spider-Verse, where there are endless variations on Spider-Man. One of the Spider-Man variations living inside the Spider-Verse is Spider-Man, Peter B. Parker, who guides Miles in his journey as the new Spider-Man and introduces him to the multitude of other...

When Tony Stark tries to jumpstart a dormant peacekeeping program, things go awry and Earth2s Mightiest Heroes, including Iron Man, Captain America, Thor, The Incredible Hulk, Black Widow and Hawkeye, are put to the ultimate test as the fate of the planet hangs in the balance. As the villainous Ultron emerges, it is up to The Avengers to stop him from enacting his terrible plans, and soon uneasy alliances and unexpected action pave the way for an...

A wealthy industrialist is held captive in enemy territory and escapes by building a high-tech suit made of armor. When he returns home, he decides to use his money, talents, and suit to save the world.

As the Avengers and their allies have continued to protect the world from threats too large for any one hero to handle, a new danger has emerged from the cosmic shadows: Thanos. A despot of intergalactic infamy, his goal is to collect all six Infinity Stones, artifacts of unimaginable power, and use them to inflict his twisted will on all of reality.

The grave course of events set in motion by Thanos that wiped out half the universe and fractured their ranks compels the remaining to take one final stand in the grand conclusion to twenty-two films.