A recap and chapter listing for the Invader Zim fanfiction Invader Zim: A Bad Thing Never Ends.
- The Squatter: Upon learning that Skoodge has been living in his base for months, Zim forces him to aid in his latest plan against Dib and Gaz.
- Uninvited Guest: When Bob shows up at Zim's base, Zim recruits him alongside Skoodge to launch an attack on the Membranes' house.
- Big Announcement: The Announcer's arrival on Earth coincides with a mysterious creature being spotted in The City, which Zim becomes obsessed with capturing.
- The Breakout: Imprisoned on Moo-Ping 10, Tak plots her escape.
- Zim's Irken Commute of Doom: With Zim threatening to kick them out of his base, the Minion Trio enact a plan to steal a prize from Dib to please him.
- The Hideous Girl Returns: Tak announces her return to Earth by launching an attack on Zim's base in an attempt to claim it for herself.
- The Dreadful Sound of Progress: Dib's attempt to ally with corporate scientist Aldrich Coathanger fails when it's revealed that Aldrich is an even bigger monster than Zim.
- The Interloper: While the Minion Trio attack Tak's base, Zim encounters a new threat in the form of a mysterious Irken named Lex.
- NASAPlace No More!: A field trip to the site of Aldrich's latest plan results in a fight between all the factions, while Dib meets a familiar face who might be a potential new ally.
- Poopwatch Rising: Dib and Gaz attempt to convince Fizzmitz to join their fight against the Irkens and Aldrich, and to teach the two of them the secrets of Poopmancy.
- The Lessermost Court: Aldrich takes Zim's team to court for stealing his technology, forcing the Irkens to take desperate measures to win the case.
- The Flavors of Magic: An attack on their home by Tak forces Dib and Gaz to put Fizzmitz's lessons into practice.
- Base Crashers: Tak and Lex launch a full-scale assault on Zim's base in an attempt to capture Minimoose.
- Iggins, Herald of Doom: Gaz must face her trauma when Aldrich gifts her one-time rival Iggins with a drone to attack the Membranes and the Irkens with.
- The Prelude Ends: After a fight with Aldrich goes wrong and strands the Minion Trio, Minimoose, and MiMi on a deserted island, Zim and Tak must work together to find and rescue them.
- One for Mall and Mall for One: The Membrane faction's trip to the Mall collides with plots by Zim and Aldrich, as well as the overly-enthusiastic security guard Slab Rankle.
- Deadly Confrontation: The four factions face off with each other in a battle of giant robots.
- I Hate Everything About You: The Membrane faction infiltrate Aldrich's headquarters to figure out his master plan, while the conflict between the Irkens hits a boiling point.
- Election Day, Part 1: The Membranes, Tak, and Zim's team all reluctantly team up to defeat Aldrich and Lex once and for all.
