The Marx Brothers get caught up in the mayhem when a sanitorium (directed by a veterinarian played by Groucho) is taken over by a casino.
Celebrate the completion of the transcontinental railroad at the train station with the Tinplate Trackers who will set up a small display of model trains for all to enjoy. 8am-7pm. Free.
Amtrak, 250 N. Lamar, 800/872-7245
Hmmm. I wonder who might want to come with you to take a tour of the Wildflower Center's gardens? (Spoiler alert: It's your Mom.) 9am. $25 ($6 for individual gardens).
Lady Bird Johnson Wildflower Center, 4801 La Crosse, 512/232-0100
You probably know the story, but what about your kids. Introduce them to this timeless tale courtesy of ZACH Theatre's Family Series. Saturdays through May 24, 11am & 2pm. $16 ($14, kids).
Zach Theatre's Whisenhunt Stage, 1510 Toomey, 512/476-0541 x1
The summer kicks off with this fest concentrating on science and engineering. There will be a planetarium, a robotics demonstration, a climbing wall and much, much more. 10am-2pm.
Eastside Memorial High School, 512/414-2414
The champions of the PDL's Southern Conference start up the season with a match against the Houston Dutch Lions on Saturday before hosting NTX Rayados on Wednesday. See "Soccer Watch" for more. Vs. Houston Dutch Lions: Sat., May 10, 7:30pm; Vs. NTX Rayados: Wed. May 14, 7:30pm. $10.
House Park, 1301 Shoal Creek Blvd., 512/335-8881
The ladies of the banked track rip the Palmer Events Center a new one as the Cherry Bombs face the Hellcats. 7pm. $15.
Palmer Events Center, 900 Barton Springs Rd.
The track may be flat but the action isn't. The Honky Tonk Heartbreakers clash with the Hotrod Honeys before the Hell Marys and the Hustlers throw down. 5:45pm. $15 ($12, advance; $5, kids).
Austin Convention Center, 500 E. Cesar Chavez, 512/404-4000
The top-seeded Stars take on the fourth-seeded Grand Rapids Griffins as they advance to the second round of semifinals, after defeating Oklahoma in a three game sweep in round one. The Calder Cup is closer in sight as the team start with a two-game home stand before traveling to Michigan for three, then back to Austin for two, if necessary. Thu., May 8, 7:30pm; Sat., May 10, 7:30pm. $15-75.
Cedar Park Center, 2100 Avenue of the Stars, Cedar Park, 512/600-5000