Here are storylines for the weekend IndyCar Series races in Detroit:
Verizon IndyCar Series prepares for Detroit doubleheader
The Chevrolet Indy Dual in Detroit will mark the first of three doubleheaders on the 2014 Verizon IndyCar Series schedule. Drivers will contest a pair of  70-lap races Saturday and Sunday on the 2.36-mile temporary street circuit, posing a unique challenge for drivers and teams. Will someone sweep the races and be crowned king of the streets in Detroit?
Hunter-Reay looks to continue surge at Detroit
Ryan Hunter-Reay scored the biggest win of his career when he won the 98th Indianapolis 500 on May 25. Hunter-Reay, who finished second in the first of two races on Belle Isle in 2013, took the lead in the championship standings and looks to maintain his momentum. Can he continue his climb towards a second championship with at least one win in Detroit?
Helio returns to site of his first fence climb
Helio Castroneves returns to Belle Isle, hoping to climb the fence at the circuit where he won his first Indy car race in 2000. Castroneves has two victories and two poles at Belle Isle for team owner Roger Penske's team. Can he win again at the Captain's home track?
Watch for Wilson
Justin Wilson is familiar with victory lane at Belle Isle, having won the race in 2008. Wilson returns to the circuit with a team also familiar with victory lane in the Motor City, Dale Coyne Racing. Can Wilson, who won the team's first race in 2009 at Watkins Glen, bring the team back to victory lane at Belle Isle?
Second-generation stars hope to add to family legacy
The latest generation from two of open-wheel racing's most familiar families comes to Belle Isle in hopes of adding to the family legacy. Marco Andretti - the grandson of racing legend Mario Andretti and son of two-time Detroit winner Michael Andretti - comes to Detroit in search of his first win of the season. Another son hoping to return his father's team to Victory Lane is Graham Rahal. The son of inaugural Belle Isle winner Bobby Rahal hopes to turn around a slow start to the season with strong races on Belle Isle.
Detroit native look for win as team owner
Verizon IndyCar Series team owner Roger Penske calls Detroit home and brings a strong chance to win the home race for engine manufacturer Chevrolet. Penske played an active role in bringing back the race to Detroit, and his Team Penske has Will Power, former Belle Isle race winner Helio Castroneves and Juan Pablo Montoya.
Generation Next
James Hinchcliffe, Simon Pagenaud and Charlie Kimball all scored their first win in 2013, finished top 10 in the championship standings and established themselves as the next stars of the sport. Will 2014 be the year a new, young star becomes a champion?
Conway aims for second victory
Mike Conway was a surprise winner at Long Beach, inheriting the lead with three laps remaining and returning Ed Carpenter Racing to the winner's circle. Now, the Englishman looks for another milestone - helping the team win its first entrant championship. Can Conway win again at Belle Isle and help the team stay near the top of the standings?
Follow the Frenchman
Simon Pagenaud claimed his first Indy car win on the streets of Belle Isle in 2013. Now he hopes a strong performance in Detroit can springboard him to the Verizon IndyCar Series title. Can Pagenaud, who won the inaugural Grand Prix of Indianapolis on May 10, maintain his top form on street circuits and gain ground in the title race?