Ep 8. Invasion!

Arrow is a thrilling superhero television series that first premiered in 2012. It follows the story of billionaire playboy Oliver Queen (Stephen Amell), who returns from a five-year shipwreck-stranded on a mysterious island. He comes back with a mission to clean up corruption and crime in his hometown, Starling City. He is reborn as the titular character 'Arrow' after gaining exceptional archery skills and a keen sense of justice.

Arrow is one of the prominent seasons of the DC Universe's Arrowverse. In the fifth season of Arrow, the episodes are full of unexpected twists and turns. The eight episode of the fifth season named 'Invasion' is part three of a four-night crossover with the shows 'Supergirl, 'The Flash,' 'Arrow,' and 'Legends of Tomorrow.' The episode starts as Oliver wakes up from a dream sequence where he sees himself on the original 'Queen's Gambit' yacht before its sinking and in the presence of characters from all four shows. Confused but intrigued, Oliver begins to investigate what is happening.

In the storyline, the Dominators, an alien species, invade the Earth, and Oliver calls his allies for assistance. The episode takes place years after the accident on the 'Queen's Gambit,' and Oliver is now mayor of Star City. Meanwhile, the Dominators, who abducted Oliver and other superheroes in the last episode, try to convince them that metahumans are a threat to the world and need to be eradicated. In a separate plotline, Thea (Willa Holland) finds herself in a fantasy world where she is happily married and not suffering as she is in the real world.

The episode is full of action and drama. The show's lead actors deliver excellent performances and are well supported by their colleagues. Arrow, The Flash, Supergirl, and other superheroes come together to fight against the Dominators. The special effects used to depict the extraterrestrial threats are also stunning and provide for an immersive viewing experience.

'Invasion' deals with heavy themes such as trust, teamwork, and leadership. The episode explores the emotional and psychological impact of the Dominators' invasion on the characters and their relationships with each other. It is also one of the rare episodes of the series to see so many superheroes working together.

Overall, Arrow season 5 episode 8 named invasion is a great addition to the Arrowverse. It forms the third part of an exciting crossover event and features spectacular action scenes, excellent acting, and emotionally charged storytelling. Fans of the show will undoubtedly appreciate the show's efforts to bring together the entire Arrowverse under one story arc.