"Run" is arguably one of the best episodes of the early seasons. It expands the world beyond Smallville and gives us a glimpse into a future where Clark isn't the only hero on the planet.
"Run" is the fifth episode in the fourth season of Smallville, and seventy-first episode overall. It aired on October 20, 2004. Smallville Wiki Run | Smallville Wiki [S4E5] Run
"I'll see you around, Clark... if you can keep up." — Bart Allen "Run" is arguably one of the best episodes
Naturally, Lex is already tracking the "blur" that saved Jonathan Kent earlier in the episode. The tension between his curiosity and Clark’s protection of Bart is palpable. Key Quote: It aired on October 20, 2004
Introduced as a charming, slightly rebellious street kid, Bart brings a fresh energy to Smallville. His chemistry with Clark is instant, even if their ethics don't exactly align at first.