I saw this movie in the early 1990’s, no later than 1998.
If I remember correctly, the little boy lived in a house on a farm or someplace with land, not in a city. He was crawling under a table or cabinet.
The only scene I vividly remember is that young boy walking through a dark Canyon. The walls were close on either side and made up of honeycomb like caves. I can’t remember if it was aliens or monsters that reside in those caves but I remember he was incredibly scared of them snatching him up.