before he can deal the final blow, Aku opens a time portal and throws Jack into it, sending him millennia into the future. Part II: The Samurai Called Jack When Jack finally escapes the time portal, he lands in a technologically advanced city in a dystopian future. After Jack escapes being crushed, he meets three urban alien teenagers who call him "Jack". He learns from them that Aku has conquered the world and spread his influence across the galaxy, enslaving many planets while using Earth as his base of operations. The teens then suggest getting a drink at a nearby bar, where Jack disposes of alien criminals inside. This catches the attention of a group of anthropomorphic dog archaeologists, who discover the truth about Jack's origins and ask for his help in saving their group from Aku's oppression. Jack agrees and leaves with them, introducing himself as "Jack" for the first time. One of the bar's alien waitresses, secretly a spy for Aku, informs her master of Jack's actions at the bar. Jack and his companions arrive at the mines the dogs were excavating before witnessing the fate which befalls those incapable of fulfilling Aku's bidding. Part III: The First Fight Jack and the dogs devise a strategy to defeat Aku's army of mechanical beetle drones. On the day of the attack, Jack faces the army and drastically reduces their numbers using the crystals Aku forced the dogs were to dig for, but runs out of artillery and is forced to fight the remaining drones on foot. Despite suffering several injuries, Jack finishes off the last drones when they attempt to retreat. With the army defeated, the dogs thank the Samurai and go their separate ways. Aku, who had been watching the battle the whole time, promises Jack that he will destroy him and that the time and place will be his choice. Seasons 1–4 For most of the series, Jack embarks on adventures to a variety of environments as he searches for a way back in time or an opportunity to return home. During his fifty years in Aku's future, Jack spends much of his time helping people, garnering the respect of everyone he helps along the way, while Aku subsequently destroys nearly every method of returning to the past. Between seasons 4 and 5, Jack slowly falls into depression and madness due to his constant or seemingly irreversible