| Episode cast overview, first billed only: | |||
| Tom Welling | ... | Clark Kent | |
| Kristin Kreuk | ... | Lana Lang | |
| Michael Rosenbaum | ... | Lex Luthor | |
| Eric Johnson | ... | Whitney Fordman (credit only) | |
| Sam Jones III | ... | Pete Ross | |
| Allison Mack | ... | Chloe Sullivan | |
| Annette O'Toole | ... | Martha Kent | |
| John Schneider | ... | Jonathan Kent | |
| Eric Christian Olsen | ... | Young Harry Bollston | |
| Jackie Burroughs | ... | Cassandra Carver | |
| George Murdock | ... | Old Harry Bollston | |
|
|
Lisa Calder | ... | Zoe Garfield |
| Alf Humphreys | ... | Jim Gage | |
| Mitchell Kosterman | ... | Sheriff Ethan Miller | |
| Reg Tupper | ... | Doctor | |
Clark and Pete apply to community work in an institute for the aged to be close to Lana Lang who's also volunteering there. Clark's favorite patient is Cassandra Carver, a blind old lady that foretells the future, and who realizes that Clark is not from this world. Lana takes care of Harry Bollston, an unknown former murder. When Harry falls in a lake full of kryptonite nearby the institution, he becomes young again. The young Harry Volk then seeks revenge against the descendants of the members of the jury that sentenced him in the past by killing them. One of these descendants is Jonathan Kent. Meanwhile, Lex approaches Cassandra to ask her information about Clark, and she has a vision of disaster involving Lex. Written by Claudio Carvalho, Rio de Janeiro, Brazil
Clark Kent applies to community work in an institute for the aged to be close to Lana Lang. Clark's favorite patient is Cassandra Carver (Jackie Burroughs), an old lady that foretells the future. Lana takes care of Harry Bollston (George Murdock), an unknown former murder. When Harry falls in a lake full of kryptonite nearby the institution, he becomes younger again. The young Harry Volk (Eric Christian Olsen) revenges the descendants of the members of the jury that sentenced him in the past trying to kill them. One of these descendants is Jonathan Kent.
"Hourglass" is a reasonable episode of "Smallville", but not my favorite. The story has some flaws, like for example how the Kents could explain the death of old Harry Bollston in a pit for corn. However, the scene when Cassandra Carver sees the future of Lex Luthor is very impressive. My vote is seven.
Title (Brazil): "Destino" ("Fate")