1x1 - The Coded Message

September 24, 1994

1x2 - Off to Iceland

October 1, 1994

1x4 - The Sleeping Volcano

October 8, 1994

1x5 - Romy in Danger

October 9, 1994

1x6 - Towards the Centre of the Earth

October 15, 1994

1x7 - Transfer's Revenge

October 16, 1994

1x8 - An Unexpected River

October 22, 1994

1x9 - Lost in Darkness

October 23, 1994

1x10 - The Underground Sea

October 29, 1994

1x11 - The Battle of the Monsters

October 30, 1994

1x12 - The Storm

November 5, 1994

1x13 - The Trip Back

November 6, 1994

1x14 - A Maritime Mystery

November 12, 1994

1x15 - Old Friends

November 13, 1994

1x16 - Ned Land, the Harpooner

November 19, 1994

1x17 - On the High Seas

November 20, 1994

1x18 - The Monster of the Depths

November 26, 1994

1x19 - The Mysterious Captain

November 27, 1994

1x20 - Prisoners on the Nautilus

December 3, 1994

1x21 - An Underwater Walk

December 4, 1994

1x22 - On Terror Firma

1x23 - The Pearl Divers

December 18, 1994

1x24 - At the South Pole

January 7, 1995

1x25 - Fighting with the Octopus

January 8, 1995

1x26 - Escape Plans