Abstract: A mobile-exercise trailer includes a platform having at least one exercise equipment arranged thereon. Two sidewalls each have a first end joined to the platform, and at least one of the two sidewalls has a window. A first door is arranged to cover the window in at least one sidewall. A roof is attached to a second end of each of the two sidewalls, and a first power rack is retractably extendable from one of the two side walls. Attachment strips may be arranged on one of the two sidewalls. At least one of dip bars, wall ball targets, a punching bag, and a virtual weight pulley machine can be connected to the attachment strips. Video monitors are arranged on at least one of the two sidewalls. Two wheels are axially arranged below a portion of the two sidewalls, and a manual and/or remote controlled trailer dolly extends from a front of the mobile-exercise trailer.