Synopsis by Hal Erickson
Accompanied by her pet "bloop" Debbie, Penny (Angela Cartwright) does some exploring of the planet, ultimately coming across a strange full-length mirror, which casts an even stranger reflection. Like Alice, she steps into the mirror and emerges in a different dimension, where she meets a lonely boy (a pre-Bonnie and Clyde Michael J. Pollard) who exists only in the mirror. . .if, indeed, he exists at all. This episode is capped by a moment of rare poignancy--not to mention series regular June Lockhart's sudden acquisition of an English accent when speaking the line "Penny, where have you been?"