Ep. 5: Irvine and Moonbay face a sleeper trap ambush in ancient ruins after a treasure hunt.
Aired on October 2, 1999

5
Following repairs to the Shield Liger, the group encounters Moonbay, whose Gustav carries heavy Imperial arms. After a brief skirmish with sleeper Guysacks, they camp at an ancient fortress. Van, Fiona, and Zeke go swimming and discover Zoid remains, prompting Irvine to retrieve his electromagnetic whip. More sleeper Guysacks attack, revealing a trap where earlier foes were decoys. A fierce battle ensues against a battalion. Moonbay lures half the enemies away, then jettisons her cargo to detonate the Imperial ammunition, destroying the rest. She returns to Van, requesting him as her protector.
Episodes
- Ep. 1 · Van from Planet Zi discovers Zeke and a mysterious girl while pursuing his father's legacy as a Zoid pilot.
- Ep. 2 · Van introduces Zeke and amnesiac Fiona to his village before bandits attack.
- Ep. 3 · Van and Fiona explore an ancient fortress while evading Irvine's pursuit.
- Ep. 4 · Van and Fiona arrive at a village plagued by bandits after a water-related conflict.
- Ep. 5 · Irvine and Moonbay face a sleeper trap ambush in ancient ruins after a treasure hunt.
- Ep. 6 · Van and Irvine escape Helic Republic soldiers after merging with Zeke and Liger.
- Ep. 7 · Van and Zeke seek to rescue Moonbay and Fiona while Major Schubaltz plans a false flag attack.
- Ep. 8 · The gang seeks Zoid Eve clues in the capital while facing Rosso's ambush.
- Ep. 9 · Van and Irvine battle rare-hertz effects while Zeke loses control of his fused Zoid.