15-year-old Ben Tennyson chooses to once again put on the Omnitrix and discovers that it has recalibrated and can now transform him into 10 brand-new aliens. Joined by his super-powered cousin Gwen Tennyson and his equally powerful former enemy Kevin Levin, Ben is on a mission to find his missing Grandpa Max.
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The peak run. Top 40% of seasons by average rating — consecutive, with an average of 8.64.
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Yuri Lowenthal
Ben Tennyson (voice)
Ashley Johnson
Gwen Tennyson (voice)
Greg Cipes
Kevin Levin (voice)
All 46 episodes plotted by IMDb rating
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13 episodes • 2008Avg: 7.1Valley of Despair
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | Ben 10 Returns (1) | Apr 18, 2008 | 7.9 |
| 2 | Ben 10 Returns (2) | Apr 18, 2008 | 7.3 |
| 3 | Everybody Talks About the Weather | Apr 26, 2008 | 7.2 |
| 4 | Kevin's Big Score | May 3, 2008 | 7.1 |
| 5 | All that Glitters | May 10, 2008 | 7.0 |
| 6 | Max Out | May 17, 2008 | 6.6 |
| 7 | Pier Pressure | May 31, 2008 | 7.0 |
| 8 | What Are Little Girls Made Of? | Jun 7, 2008 | 7.0 |
| 9 | The Gauntlet | Jun 14, 2008 | 6.7 |
| 10 | Paradox | Jul 5, 2008 | 7.5 |
| 11 | Be-Knighted | Jul 12, 2008 | 6.7 |
| 12 | Plumber's Helpers | Jul 19, 2008 | 7.0 |
| 13 | X = Ben + 2 | Aug 31, 2008 | 7.4 |
13 episodes • 2008Avg: 8.6Golden Era
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | Darkstar Rising | Oct 10, 2008 | 9.0 |
| 2 | Alone Together | Oct 17, 2008 | 9.8 |
| 3 | Good Copy, Bad Copy | Oct 24, 2008 | 8.6 |
| 4 | Save The Last Dance | Nov 7, 2008 | 9.0 |
| 5 | Undercover | Nov 14, 2008 | 8.2 |
| 6 | Pet Project | Nov 21, 2008 | 8.8 |
| 7 | Grounded | Nov 23, 2008 | 7.0 |
| 8 | Voided | Dec 5, 2008 | 8.2 |
| 9 | Inside Man | Dec 12, 2008 | 8.5 |
| 10 | Birds of a Feather | Mar 24, 2009 | 8.2 |
| 11 | Unearthed | Mar 25, 2009 | 8.5 |
| 12 | War of the Worlds (1) | Mar 27, 2009 | 9.5 |
| 13 | War of the Worlds (2) | Mar 27, 2009 | 9.0 |
20 episodes • 2009Avg: 7.5
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | Vengeance of Vilgax (1) | Sep 11, 2009 | 7.0 |
| 2 | Vengeance of Vilgax (2) | Sep 11, 2009 | 7.0 |
| 3 | Inferno | Sep 18, 2009 | 6.5 |
| 4 | Fool's Gold | Sep 25, 2009 | 6.3 |
| 5 | Simple | Oct 9, 2009 | 7.4 |
| 6 | Vreedle, Vreedle | Oct 16, 2009 | 8.5 |
| 7 | Single Handed | Oct 23, 2009 | 8.5 |
| 8 | If All Else Fails | Nov 6, 2009 | 9.0 |
| 9 | In Charm's Way | Nov 13, 2009 | 8.8 |
| 10 | Ghost Town | Nov 20, 2009 | 6.6 |
| 11 | Trade-Off! | Dec 4, 2009 | 7.2 |
| 12 | Busy Box | Dec 11, 2009 | 7.4 |
| 13 | Con of Rath | Jan 8, 2010 | 7.6 |
| 14 | Primus | Jan 15, 2010 | 7.8 |
| 15 | Time Heals | Jan 22, 2010 | 7.8 |
| 16 | The Secret of Chromastone | Jan 29, 2010 | 7.4 |
| 17 | Above and Beyond | Mar 12, 2010 | 6.4 |
| 18 | Vendetta | Mar 19, 2010 | 6.8 |
| 19 | The Final Battle (1) | Mar 26, 2010 | 7.6 |
| 20 | The Final Battle (2) | Mar 26, 2010 | 7.7 |
