Black Lagoon - Season 1

After Roberta's employer, Diego Lovelace, dies in an explosion set by US agents at an event of an emerging left-wing party in South America, she disappears to hunt down and kill the perpetrators. Some time later, Garcia Lovelace is accompanied to Roanapur by his maid and bodyguard Fabiola Iglesias. Following a shootout with enemies Roberta made during her last visit to the city, Fabiola takes the Lagoon Company to see her young employer, whom she finds in the presence of Chang. Garcia and Fabiola recount to their guests what has transpired and make a job offer, which Dutch declines in the name of the Lagoon Company, unwilling to get drawn into a conflict with the United States. The offer, however, is directed specifically at Rock. Meanwhile, Roberta appears in the city, looking for equipment necessary to wage war.

Encouraged by Chang, Rock agrees to help locate Roberta. Dutch, however, strongly urges him to get out of the line of fire should he be unable to find Roberta before her conflict with the United States escalates. After working through the night, pondering, Rock, accompanied by Benny, takes Garcia and Fabiola along for a round of fruitless investigations. Eventually, Benny convinces them to stay at Chang's yacht house, where their unusual appearance will not get in the way. Meanwhile, Roanapur's crime lords meet to discuss the situation, and Roberta accumulates the things she needs with the help of a man named Richie Leroy. Still unable to solve the puzzle, Rock enlists Revy's help, who proves more successful than him at getting the townsfolk to talk, and learns from a crazy person about Roberta's involvement with Richie.

Revy mines Richie for information on Roberta's whereabouts, then heads toward her, accompanied by Rock, Garcia and, Fabiola. Finding upon their arrival that open conflict has already ensued between Roberta, units of the US Army, and others, Revy hires reinforcements in the form of Shenhua, Sawyer, and Lotton. After giving Garcia an envelope to be opened when he no longer knows what to do, Rock stays behind, while the others enter the combat zone. Garcia is separated from the group, finds Roberta's empty bottle of stimulants, and follows her. He witnesses her killing several FARC soldiers with bare hands and being beaten and pinned down at gunpoint by another. Instead of following his orders to kill her, the soldier attempts to recruit Roberta back into the FARC. She gives herself swayed by his words and feigns sexual arousal by the situation. The soldier is fooled, and she wounds him with a hidden weapon, professes her devotion to Garcia, and goes down on him with her fists. Garcia, disturbed by the scene, steps into view, asking her to stop. At first, Roberta is shocked by her young master's presence, but quickly decides that he must be another hallucination, and aims a gun at him to prove it.

After Garcia is rescued by a group of American soldiers, Roberta is engaged by and defeats Shenhua, Sawyer, and Lotton with non-lethal force. Confronting her, Fabiola is forced to acknowledge her chief's insanity. Regaining consciousness in the presence of the Americans, Garcia pulls a gun on their commander, Major Shane, who, after learning about Garcia's circumstances, agrees that he has a right to vengeance. Roberta attacks, interrupting the exchange, but is repelled with assistance from Hotel Moscow. Meanwhile, Rock has a meeting with Eda, and calls Dutch to arrange for the Lagoon Company to take the Americans out of town. Dutch hangs up on him, but when Chang calls for the same reason, he is left with little choice, and accepts. Finding their young employer in the hands of the Americans, Revy and Shenhua decide to attack them, but are prevented from doing so by Hotel Moscow. Garcia hands the Americans a map from Rock's envelope. Following it, they head for the coast. En route, they are again attacked by Roberta, and, again, Hotel Moscow intervenes in their favor. With Garcia, Fabiola, the Americans, and the Lagoon Company on board, the Black Lagoon sets sail for the river Mekong, while Eda manipulates Roberta into boarding an air plane with her.

After conversations between Garcia and Rock, as well as Fabiola and Revy, Garcia decides to follow Rock's plan, and Revy experiences unpleasant flashbacks from her past. The Black Lagoon arrives at its destination in the Golden Triangle, and the Americans set out to complete their mission. In the jungle, they are attacked by Roberta, using her former employer's antique musket to fire flechettes. She kills several, but is severely wounded and loses two fingers. Garcia, Fabiola, and Major Shane come face to face with Roberta, and Garcia explains that she cannot redeem past sins by taking revenge, then fires blanks at both Shane, who pretends to drop dead, and Roberta, who reflexively fires back, wounding Garcia. The confrontation ends with Garcia laying in Roberta's arms and Shane ordering his men to stand down. Meanwhile, Rock explains his motives to Revy, and predicts his victory over Chang and future changes to Roanapur. As the wounded are carried onto the Black Lagoon, Fabiola takes her anger out on Rock by raging and firing a blank at him. Several months later, Rock laments that nothing has changed in Roanapur after all, and Roberta, having lost an arm and a leg, and living in Garcia's mansion, meets the family of the victim of hers who had haunted her for so long.