The green fish man is wearing the exact same costume as the fish person from "Shocker on Shock Street".
In the books, Billy is 12 and Sheena is 10. However, in this episode and its predecessor, Sheena appears to be the same age as Billy, possibly even older.
Uncle Harold: You have to believe me! I created D-13 to help mankind, not to destroy it!
This episode and its predecessor are based more on Deep Trouble II, rather than Deep Trouble.
Based on Books #19 and #58.
S 4 : Ep 8
Aired 11/16/98
S 4 : Ep 7
Aired 11/16/98
S 4 : Ep 6
Aired 10/31/98
S 4 : Ep 5
Aired 10/31/98
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