Ep. 18: Simon searches for Nia after the Anti-Spirals' first attack while Rossiu completes his secret project.
Aired on July 29, 2007

Following the initial assault by the Anti-Spirals and Nia's surprising declaration, Simon urgently attempts to locate her. Meanwhile, Rossiu brings his hidden initiative to its conclusion. The narrative focuses on Simon's desperate efforts to find Nia amidst the chaos, contrasting with Rossiu's finalization of his confidential undertaking. These parallel developments highlight the immediate aftermath of the conflict and the shifting dynamics between the characters as they navigate the consequences of the recent events.
Episodes
- Ep. 14 · Team Dai-Gurren faces combined forces of Cytomander and Guame at Teppelin outskirts
- Ep. 15 · The final Divine General falls as Teppelin collapses revealing a massive Gunman
- Ep. 16 · Compilation episode recapping series events and showing writers documenting the first half of Gurren Lagann
- Ep. 17 · Seven years of prosperity under Simon end as a looming threat emerges
- Ep. 18 · Simon searches for Nia after the Anti-Spirals' first attack while Rossiu completes his secret project.
- Ep. 19 · Rossiu arrests Simon to calm public opinion before deploying him against the Anti-Spirals.
- Ep. 20 · Simon meets Viral in prison while Rossiu's emergency plan consequences are revealed
- Ep. 21 · Yoko returns to Teppelin after a year teaching, reuniting with Simon to launch into space with Viral.
- Ep. 22 · The team combines their mechs into Arc-Gurren-Lagann to halt the Human Annihilation System