The 80th episode of the donghua belongs to Season 4. It was published on BiliBili (TBA), and later in English on BiliBili & Youtube (December 2023).
This is the 4th episode of the second cour of Speeding Through the Star Seas (星海飞驰).
Zhao Zheng and Elder Fu calls the group into action, but Han Li notices that everyone are strangely passive. Zi Ling orders her disciples to retreat, so Han Li and Cultivator Meng fall back, as Sect Leader Sun appears and traps the two elders. Zi Ling reveals their plot in collaboration with Sect Leader Sun. Zhao Zheng abandons his partner and escapes the trap, with with Sun in hot pursuit. Zi Ling adresses everyone else and requests their further cooperation, now that the traitor issue has been resolved. Han Li reveals his identity, and the two catch up. Zhao Zheng reappers and calls out for Wu Chou's support, but Sun doesn't mind since he was actually aiming for Wu Chou.