Sunday has one game. It decides who goes to the Eastern Conference Finals.

The first four games of this series went exactly as expected — home teams won each of them, the road team was sent home without an answer, and the series looked like it might be scripted. Then Games 5 and 6 tore that script apart. Cleveland won in Detroit in overtime. Detroit came to Cleveland and won by 21. Neither building is a fortress anymore. Game 7 lands in Detroit, where the Pistons are 2-1 in this series and where the Cavaliers have already proven they can win.

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Cleveland Cavaliers (4) at Detroit Pistons (1) | 8:00pm ET, Amazon Prime

Game 7. Series tied 3-3.

The arc of this series has been as complete as any second-round matchup this postseason. Detroit went up 2-0 by outplaying Cleveland in its own building — turning over the Cavaliers, controlling the interior, and making the Mitchell-Harden combination feel like it was running into a wall. Then Cleveland went home, opened the second half of Game 4 with a 22-0 run, and won both home games to flip the series entirely. Then Cleveland won Game 5 on the road in overtime — the first road win of the entire series, produced by a 9-0 closing run and a moment nobody in Detroit will want to revisit. Then the Pistons answered by winning Game 6 in Cleveland by 21, with Robinson shooting 4-for-7 from three off the bench and Jenkins burying the dagger that ended any remaining suspense.

Now it's Game 7 in Detroit, and everything that happened before tonight is essentially irrelevant.

Mitchell has never been to a conference finals. That fact has hung over this entire postseason and becomes most acute on Sunday night. His 39-point second half in Game 4 was the most spectacular individual performance of the second round. His overtime heroics in Game 5 — leading a 9-0 closing run when his team had nothing left — showed a player who understands what these moments demand. Game 6 was quieter; the Cavaliers came out flat and never recovered. Tonight is the last chance to make it matter. Whoever comes out of Little Caesars Arena tonight walks into the next series against New York. Mitchell has to be the reason Cleveland walks out.

Harden is the series' most complicated variable and also its most decisive one. He has been at his best in this series when Cleveland needed him most — 24 points and 11 assists in Game 4, clutch late buckets in Game 5. When he is managing the game efficiently, running the halfcourt offense with patience and drawing fouls in the moments that matter, the Cavaliers look like a team with two stars. When he's passive or sloppy — as he was in Games 1, 2, and 6 — Cleveland relies entirely on Mitchell, and Detroit's defense is built to make that insufficient. On the road, in a Game 7, Harden has to be at his peak.

Cunningham's case for being the best player in this series is strong. He has been more consistently excellent than Mitchell across six games — two-way, creative, physical, and willing to make teammates better rather than shouldering everything himself. He is 25 years old, playing at home in the biggest game of his career, for a Detroit franchise that hasn't been in the Eastern Conference Finals since 2008. That drought ends tonight if he plays the game his talent says he's capable of. The crowd at Little Caesars Arena will be at its most volatile level of the entire postseason — this is exactly the environment Cunningham was built for.

The Duren situation is worth monitoring despite his absence from the injury report. He rolled his left ankle after colliding with Harden in the third quarter of Game 6, was subbed out immediately, made multiple trips to the locker room, and somehow returned to post 15 points and 11 rebounds — including seven offensive boards and two blocks. He is listed as available for Game 7. How his ankle responds to the warmup and the early minutes of a high-intensity Game 7 will determine whether Detroit has the interior anchor that made Game 6 look so comfortable. A healthy Duren controlling the paint against Allen and Mobley changes the geometry of every Cleveland offensive action. A compromised one opens the lane in ways that could define the series.

Robinson, Huerter, and LeVert are all questionable for Detroit. Robinson's 14-point, 4-for-7-from-three Game 6 performance was one of the reasons that game was never in doubt, and his shooting stretches the defense in ways that make Cunningham's drives significantly cleaner. LeVert had 24 off the bench in Game 4 — his ability to create off the dribble and attack closeouts gave the Pistons a third ball-handler that Cleveland didn't have an obvious answer for. If either or both are limited tonight, Detroit's bench depth shrinks considerably. The Pistons' starting five has been excellent all series. It's the role players who determine the margin.

Cleveland wins if Mitchell is the best player on the floor from tip-off — not waiting for the game to find him, but imposing himself on the first possession and every one that follows — and Harden delivers the complete, clutch-capable performance he produced in Games 4 and 5. The Cavaliers have done the impossible twice in this series already: coming back from a double-digit deficit in Game 5 and winning on the road in overtime. One more impossible thing and Mitchell gets his conference finals.

Detroit wins if Cunningham plays the game this entire series has been building toward — dominant on both ends for 48 minutes — and Duren's ankle holds up well enough for him to control the paint the way he did in Game 6. Little Caesars Arena has not lost a game in this series and has provided the margin in every Detroit win. The crowd will be ready from the opening tip. The Pistons need to be ready with them.

There is one game. It is the last game of the second round. The winner faces the New York Knicks — rested, healthy, with Anunoby returning from a hamstring injury and a team that has won eight consecutive playoff games — in the Eastern Conference Finals beginning Tuesday.

The first four games of this series belonged to the home teams. The last two proved that wasn't permanent. Game 7 is in Detroit — a building with a 2-1 record in this series and one of the loudest crowds remaining in the postseason. But Cleveland has now won there. The geography no longer settles anything automatically.

The Pistons came back from 3-1 down against Orlando to get here. The Cavaliers survived seven games against Toronto to get here. Both teams have already beaten the odds once in this postseason. Tonight, only one of them gets to do it again.

Game 7. Detroit. Eight o'clock. Everything else is settled.