While Season 1 is widely considered a masterpiece of tight plotting, Season 4 is often called “the most exhausting and ridiculous season” — but in a strangely fascinating way.
Season 4 has 24 episodes (plus an additional two-part special titled “The Final Break” that serves as the series finale, often counted separately). Interesting review / take on Season 4:
Here’s a quick answer followed by an interesting take on Prison Break Season 4.